well, what i did was buy the wpn834 and put it in place of my wired router, i wasnt impressed, the router was only about 5metres away admittedly behind 3 walls and at ground level i only got about 50% signal.
so i used the wired (dg834) router again, bought the rangemax access point connected that to the wired router and put it upstairs, now above 80% all the time and up to 96%.
but i now have a redundant wpn834 wireless router
hope this helps.
i have also tried the netgear 54mbps access point and i think the signal stength was higher if you are willing to be tied to 54mbps, and it is about £30-40 cheaper
ps i have a netgear rangemax wpn511 cardbus in the laptop also