Here's a link to a few 8 port routers at Frys. Netgear and D-Link I know make good routers, and I've never had problems with stuff from Belkin.
Linksys was bought out by Cisco, so I know Cisco makes good stuff as well. Whatever you get should be wireless-N because it has greater range and bandwidth. If you don't have a wireless-N NIC, you can buy USB ones for about $10. I replaced an old D-Link wireless-G router with a Tenda wireless-N for $15 and am very happy with it, but it's only 4 ports (plus wireless of course).

Good luck.