Saw a few people posting questions within threads about where to get raw materials for projects like the ones you guys do - some of which are just totally awesome by the way.
For this design competion I am part of at school we have been getting our matertials off of mcmaster-carr. We mainly are shopping for aluminum stock for airplane landing gear, but they have tons of stuff.
The link is www.mcmaster.com
Just thought it might help some people find materials for new projects.