In case you have not heard, there is a vauctions auction up now: http://www.vauctions.com/ There are many good types including Clodius Albinus, Aemilian, Severus II, two very rare AE3 types of Valens, lots of Greek silver, lots of Republican denarii, and many late Roman AEs. It has Vandal and Ostrogothic coins. It has something for everyone who does not spend big bucks. By the way, most of the coins have low opening levels, unlike some recent auctions.