i second it, buy it! BTW, i wasted 60 euros already. I gifted too many games this summer. Someone is planning to buy orcs must die 2? it has a 10% of discount.
For me, Steam isn't the place to buy new AAA games or ones that are about 1 year old, it's a place to buy awesome indie/smaller games :p Ones like Bastion, Magicka, Super Meat Boy, Limbo and Orcs Must Die :) And the prices for these kind of games are always very fair.
@ Kovac I think it doesn't really matter where you buy it because you're forced to activate it on steam(DRM) - just like e.g. Darksiders. So, this Steam sale isn't as cheap as it seems to be, I guess.
I already got it, but its stuck in my storage unit at the moment. :P But have actually been playing STALKER: Clear Sky lately, only played it once, and now I remember why, it its the weakest of them all.
I'm running: Intel Core 2 Duo 3ghz Win7 64bit 4gb ram Nvidia Gforce 9800gt I can run Crysis on almost max and it's totally playable until the frosty-snowy-10Bazillion particles on screen at once stuff.
Paypal is fine untill Steam freezes your account for (supposedly) a single botched transaction :D (ie. you enter the wrong password once, or your wifi goes down in the middle of the process) Which wouldn't be a problem if Steam's customer service wasn't pretty bad, as it generally is.