I really should have posted this earlier. Direct2Drive has been doing a Spring Sale the last 3 weeks. Each week they had some really good deals, but this week's are the best I've seen so far.
A Mass Effect 1 & 2 bundle for $35 (ME2 by itself is still $50) and Fallout 3 for $15 top my list. There's a number of other strategy and MMO games that I'm not interested in myself, but they're good prices. Aion for $25, Guild Wars Nightfall for $15... Well, check it out for yourselves.
http://www.direct2drive.com/promos/spring-sale/
(Note: for some reason, that page doesn't align properly in Firefox, but still works. Just a pain to find the proper links. First time in years I've used IE...)