i have the same problem as you but i overcame my issue by buying a 5.8ghz cordless phone instead of a 5.8ghz wirless router....
for a 150 bucks i got three panasonic 5.8ghz cordless handsets -- it's a great deal in my opinion and it works great and will not cause any interference with your wirless network
check out this deal at onsale.com
http://www.onsale.com/onsale/s...detail~dpno~525804.asp' ">http://www.onsale.com/onsale/s...detail~dpno~525804.asp