Plenty of sales going on again - recently it feels like every day is a sale on nearly every digital download site!
Steam have their big sale going on, but have daily deals too - as usual this should be the first place to look (unless you're anti-steam of course) Personally I bought Torchlight and GTA4 when it was on deal. Ghostbusters the game is only £5 right now which is tempting and the first borderlands DLC is only £4.
GamersGate are still running their "Holiday Giftguide" with well over 100 games on offer. If you were thinking of getting Prey, this is going for an amazing price there! There are quite a few "probably avoid" titles there but worth a check anyhow.
Direct2Drive now have an "End Of Year Blowout" sale, which is very similar to the Steam sale but not quite as many titles. Plus most of them have appeared in their 24 days of christmas sale, so if you missed one have a check now!
Good Old Games are also having a sale, which is good to see. Many of the titles on the site are 35% off so if there's a classic you're thinking of getting it (eg, Fallout 1, Psychonauts, etc...) it might be worth checking here first.
So there we go, happy holidays everyone!