Darwinia is coming out for the PC and Mac on 4 March for 30 quid. It looks awesome but I don't know much about the gameplay yet. Seems to be some kind of RTS, at least.
BreakQuest is available now for PC, free download or $20 for the full game. On segaages's recommendation I downloaded it last night and I couldn't stop playing for a couple of hours. Old-school demo music, with collision-driven SFX and some awesome physics. It's Arkanoid redefined.
current mood: is it friday yet? current music: Gradius V OST