Better WIFI perfomance?

[Bobbler]

Would there be any benefit to replacing my existing wireless router which is a Dlink G604T? Or a bigger aerial?
The wireless performance seems to be pretty dire to me, it seems to be topping out at about 200 - 300 K when downloading off the net via wireless. In contrast when plugged in via a bit of CAT5 to the same router I get my full speed (8 meg DSL). Also when accessing my printer which is attached to the lan I get timeouts quite often via WIFI.
The signal all seems to be top notch throughout the house after doing a survey from my laptop.
I have tried some tweaks such as turning off all bar G support and enabling bursting but makes little odds to the performance. Maxes out on the Windows XP task manager at not much more than 1% of total bandwidth.
Card on the laptop is built in Intel 3945ABG.

Any help appreciated, have a budget of probably upto 100 notes for any recommendations.

 

[bitslice]

umm, there are other people having the same problem with this router


Open CONTROL PANEL
Open SYSTEM
Open HARDWARE
Open DEVICE MANAGER
Open NETWORK ADAPTERS
Right-click your Wireless adapter and click PROPERTIES
In ADVANCED, make sure that the AD HOC CHANNEL is the same as your router's.

try these :
1. change the wireless channel to 6
2. change the wireless channel to 11
3. disconnect all LAN wired devices from the router
4. update the wi-fi card driver

that's it, I'm all out of straws to clutch at....


.