You got VOIP? You need a router that can handle QOS.

You have an older Linksys WRT54G or a Buffalo router?

If so, you need Tomato http://www.polarcloud.com/tomato

Once I got all the settings right, the wife can make/receive phone calls all day/night long while the neighbor and I surf the web, I download torrents, and remote proxy in from work. Works great.

Got any questions, leave a comment and I'll respond. Just don't be like the Yeti and try to load it on a Netgear and almost brick your router.