Steam have an absolutely fantastic deal going on this weekend only, they're offering the indie hit Audiosurf for only $2.49. Now, that's cheaper then a pint down the local, as cheap as a TV episode off of iTunes, and most certaintly cheaper then 99% of games that actually have a price tag. Audiosurf, for those who don't know, is kinda like... well, Guitar Hero meets Lumines is the best way I can describe it. You can select your own tracks from your computer (either MP3s, iTunes M4As, WMAs, CDs and OGG) and you drive your ship around this course collecting blocks of various colours (hence the GH part). In order to gain more points, you have to make blocks of the same colour but any shape you like, provided all of those said blocks touch together when you make the shape. It's a pretty unique game, and one that's most definitely enjoyable. Easy to learn, hard to master. I played quite a few MP3s, all of various bitrates and what not, all seemed to work fine. It was like magic, seriously. It also comes with the Orange Box soundtrack if you buy it off of Steam, which is a major bonus. Audiosurf also has its own "Radio" where it has other tracks hosted on the Audiosurf server (usually from it's own soundtrack or other soundtracks from other games). Like I said, it's $2.49 (from the usual $9.99), but it's only this weekend. Pick it up, do yourself a treat.