There are some great condition sails that you can buy used if you're on
a budget. You can find ads in the back of most sailing rags and you can
go he
http://www.minneysyachtsurplus.com/
they are in Costa Mesa, CA but they mailorder. I have bought from them
and not liked what I got, and they took it right back. (like most of it
- just had one I didn't like)

Also, try http://www.sailorman.com/index.html
They are out in Fort Lauderdale and Dave is the guy to call there about
used stuff.