Go to K&K Surplus at around I-76 and 88th. kksurplus.com They have lots of scrap they sell for 50 cents/pound and if they don't have it in scrap, the new is reasonable. And they charge $5 for a cut.
EDIT: Now I see you're in the Springs...so nevermind. But do some searching. There has got to be a K&K equivalent down there... Or it may even be worth the drive.
