Send me $20 and I'll teach you the secret handshake. LOL
I've actually never bought anything that was seized, but I've bid on some of it. Some states handle it differently. The marshalls service has links to the companies they use to sell stuff.
In my state, NC, they have a pretty good website that has auctions for drug seizure property and state surplus. I bought some state surplus stuff not too long ago. I made out pretty well. I ended up with a free LCD projector after I sold all the other stuff that came with it.
Click on "Available property" on the left, then click on "Available items for bid" on the right to bring up the lists of stuff.
That is just for NC though.