Which Linksys are you having problems with Negative. The models that start with BEF or something like that are absolute shit. I've had a WRT54G version 2 that was flawless. I gave that one to the c*nt when I left her.
Last week I had to replace a BEFSW41 because the last 2 of 4 working ports took a crap. I
replaced it with a WRT54GL and it works fine. I just disabled the wireless. I'll have it if I need it in the future. These WRT's run on Linux kernels so the uptime is [gay voice]fantabulous.[/gay voice]
Look around. WRT54GL is a highly recommended router. That one that Smurf pointed out looks interesting with the Gigabit speed.