Buy the Cabela's 400 tumbler made by Berries, made here in the U.S.A. by U.S. workers, if that means anything to you. Also if you buy it from Cabela's it carries a lifetime satification warranty, beat that!
Regarding media, check out
http://www.drillspot.com/products/52...bs_blast_media
$32.00 bucks plus change shipped right to your door, shipping encl. Fine enough there is no worry about clogged primer pockets or media stuck in flash holes. Bags 40 lbs, won't need to order another for a long time.
Add a teaspoon of Nu-Finish and you're good to go.