Zenphic: Gamersgate has Neverwinter Nights 2 Platinum on sale for $6 once again.
The bundle includes Neverwinter Nights 2, Mark of the Betrayer and Storm of Zehir.
Note that Mysteries of Wesgate is not included.
http://www.gamersgate.com/DDB-NWN2P/neverwinter-nights-2-platinum-bundle Still that's a lot of game for $6, well worth it I believe :P
Gamersgate is also having a Warhammer weekend with many titles, most notably:
Dawn of War Platinum - $7.49 - This is the cheapest I've seen this pack go for
Dawn of War II Gold - $10.18 - Perhaps not the best price, but DoW2 alone is well worth it (The expansion ups the dificulty a lot and makes several aspects of the game annoying, though some people love it better than the base game)
Dawn of War II Retribution - $11.98 - Haven't played this one sadly so can't comment much on it :(
Warhammer 40,000: Space Marine - $24.98 - About the perfect price point for this game, or at least about what I think it is worth. Pretty solid game, though the first half of it is a little too repetitive for its own sake (I like Darksiders better than this, even when I love the Warhammer 40k setting).
As usual with me, all links have ref ids.