my experience.
SOME linksys+netgeat+dlink routers have hugeee problems depending in the model of ur router.
you have to read before you buy things (cnet review member comments). a lot of linksys routers have problems dropping signal often when connected to cable modem. there is one (1) netgear router that is chit and I think they selling it for $15 now and is G. some dlinks router overheat and restart themself.
if you dont want to read then u should buy a cisco router.