Quake Wars is def. worth the $17 off. I bought mine at $50 and it's a good time.
I'll never understand the hate for Doom 3. It's a fun shooter that has nice design, a few cool scares, and is quite long. Hell, id even threw in a bona fide story this time, complete with little video and audio clips (via data pick-ups) to help tell the story. No, it isn't as unique as Bioshock, but it's an excellent shooter nonetheless.
-HM