Small Block & Big Block Chevy Specific - where to find?

im looking to build a 454 for my trans am soon and i have looked on here and on ebay but do any of you have a suggestion as to where i should look around for a 454 shortblock?
thanks

Damn brother, you are in Texas like me, should be a parts yard with a block with your name ALL over it.

good idea man thanks alot. i dont know why that never crossed my mind!