I'm working on finding a wholesale dealer ( NOT SMC) and researching some items that would have decent resale. I'm currently researching items through
www.ltdcommodities.com They have a lot of stuff online you can price, which I then cross reference with ebay...
Just a thought, as there are a lot of people doing this, and they are making money ( or at least their auction prices say they are).
hope that helps..
you can also try flea markets and yard sales.