After completing the setup i made a quick guide....
How to run 2 Netgear 834 routers in WDS:
The following setup guide will allow LAN Internet connections on all 4 ports on both the Master and Slave routers and allow for Wireless device connections on the Slave router.
Master Router: Your existing main router with the internet connection already configured. NOTE: To run WDS you'll need to remove WPA or WPA2 encryption or whatever your using and setup 64 bit WEP keys. (I had the wireless security 'Disabled' on both routers before i began the setup, i then enabled it when i had the routers working together)
Slave router: The 'spare' router used elsewhere in the home to connect wirelessly to the Master router, thus providing an internet connection for Wireless or LAN devices attached to the Slave router.
Firstly: On your Slave router use a bent paper clip or something similar to reset the router settings back to its default settings. The small reset switch hole can usually be found on the back of the router between the power cable and port 1.
Secondly: We need to change the IP address of the Slave router (its a good idea to temporarily switch off the Master router before doing this next bit). Because we have 2 Netgear 834 routers it'll be common that the default login IP addresses will be identical, this will cause problems when running both routers together. In my instance i used 2 X Netgear 834's (Master V4, Slave V3. Both support WDS) and IP's for both were 192.168.0.1 so i changed the Slave routers IP to 192.168.0.2 To do this first log into the Slave router and on the left Click on 'LAN IP Setup' under the 'Advanced' section. Under 'LAN TCP/IP Setup' simply change the IP from 192.168.0.1 to 192.168.0.2, then click on 'Apply' at the bottom to apply the changes. (obviously you'll have to remember to login with the new (192.168.0.2) IP the next time you login)
While we are logged into the Slave router we'd do well to set this up now: Under the 'Advanced' section select 'LAN IP Setup' and untick 'Use router as DHCP Server' then click apply at the bottom to apply the changes. Next under the 'Advanced' heading click on 'Advanced Wireless Settings' then under 'WDS Mode' make sure 'Enable Wireless Bridging And Repeating' is ticked. Next tick the bottom 'Repeater with Wireless Client Association' option and click apply to apply the changes. In this area you will see grey entries under 'local MAC Address' - this address is the MAC address of the Slave router that your connected to and will be needed to configure the Master router, so write it down ready for configuring the Master router. Leave the Slave router logged in and head off to the Master router and power it up. Login to the Master router with: 192.168.0.1 and go to the 'Advanced' 'LAN IP Setup' and leave 'Use router as DHCP Server' ticked but change the 'Starting IP Address to 192.168.0.3. Then click apply at the bottom to apply the changes. Then under the same Advanced' heading go to the 'Advanced Wireless Settings' 'WDS Mode' screen again. In here tick the top 'Enable Wireless Bridging and Repeating' option and tick the middle ' Wireless Point to Multi-Point Bridge'. To the right of this enter the Slave routers MAC address that you wrote down into the 'Remote mac address 1' field and save by clicking apply at the bottom. In the 'Local MAC Address' area write down this greyed out MAC address of the Master router and head back to the Slave router and enter it into the 'Repeater with Wireless Client Association' 'Remote MAC Address 1' field and click apply to apply the settings.
After these changes have been made, shut down all computers that will connect to this network and power off both routers.
Power up the Slave router and wait for a minute or so, then power up the Master router. When you can see the Master router has gone online you can power up the computers. You should now have Internet connections on all ports of both your Master and Slave router. The computers connected to the Master would have generally been uneffected. If you have no internet connection on any computers attached to the Slave router try reaquiring an IP on them.
Security wise you'll need to setup identical WEP keys SSID names on both routers (i'm not sure if this is 100% needed but i did and its fine).
For added wireless security i added all MAC addresses of my connected wireless devices, e.g laptop etc to the trusted list in: 'Setup' 'Wireless Settings' 'Wireless Station Access List' 'Setup Access List'
Its a good idea to check that all of these settings were applied/saved to the router by logging out & logging back in.
Remember: Your login IP for your Master router is 192.168.0.1 and your login IP for your Slave router is now 192.168.0.2
To get your WLAN devices 'Device name' and 'MAC address': In the 'Command' prompt of the laptop for instance type: ipconfig /all then either add these new station details manually to 'SETUP/ WIRELESS SETTINGS' click 'Setup Access List' Or if the matching device is showing in the 'Available Wireless Stations' list just click on 'add' to add it to the 'Trusted Wireless Stations' list. (I put these in the trusted lists of both routers but i think you only need to do this on the Master router, doesn't hurt to do both though)
Hope this helps.