Do I need a new router for peer-to-peer?

Whenever I'm using a torrent I usually have problems with getting a high download rate regardless of the amount of seeds avaliable. I was therefore thinking that maybe it was the router that was causing all of the problems, and was wondering if getting a better one might fix the problem. The type of router I have now is a Speedstream 6520. Also I tend to use BitComet, and my half open limit is set to 50.

I have already been to Newegg, so I have seen several of the different types of routers avaliable, the only problem is, I can't really make heads or tails out of which is the better one to get. If anyone has any advice on this matter please let me know.

You need a brain. Router comes last in your situation.