You can get standard STI frames from www.practicalshooting.com for $310. They're pretty much the standard as far as hi-cap frames go and they have the most accessories available for them. I got one from them and am building an IPSC open gun with it. Most places want at least $350 for these. That's the cheapest place I've ever seen them. I think it would be worth going over-budget by 10 bucks to get an STI frame.
[This message has been edited by hhsmiley (edited 07-12-2001).]
[This message has been edited by hhsmiley (edited 07-12-2001).]