I've had a few so I'll give my 2p worth of them.
Netgear DG834G - excellent router, keeps on going through thick or thin. Downsides, it's recovery software only works in XP, generally a good connection though
Buffalo WBMR-G300N - an ok router, nothing special and lacking quite badly in the diagnostics area, wouldn't recommend it personally
2Wire something - an old BT Homehub, probably one of the first? Quite a decent enough one, keeps ticking over, good management pages, not half bad
Cisco 857W - or maybe 855W, the 85x anyhow, it's a Cisco so it's a quality router, only supports Wireless G, need to fiddle with ADSL firmware to get the best connection, doesn't support IPV6 and never will apparently but still a good router if you want to get into the gubbins of the router, can be difficult to set up
Cisco 877W - another good Cisco that does support IPV6, again it's complicated to get it working but once it's up and running, it stays up and running which is what you want in a router.
If you want a router which you just plug in, configure once and then forget about I'd recommend the Netgear, if you enjoy playing around and don't mind screaming at your router when it doesn't do what you want, the Cisco is fun.
