Multiple wireless routers

Is it possible to run 2 wireless routers from one internet )dsl) connection?

If so, how the heck would i do it?

Heres my problem, I need to open some prts for peer to peer apps., i have a linksys wrt54gs and there are known issues with this router and P2P, I need to keep the linksys for the range, since it carries a signal a long distance, 125 yards, long to me anyway.
The other router that I have available will not push the signal as far, but I can open the ports on it and try to connect to that router for my P2P comp.....

Any suggestions?