If you've been waiting to play Obsidian's follow-up to BioWare's classic Star Wars: Knights of the Old Republic on Steam, the day has finally come. Knights of the Old Republic 2: The Sith Lords is now available on the ubiquitous PC download service. The asking price is ten bucks.
Just be sure you meet the minimum requirements. This puppy requires a Pentium 3 1GHz processor (or an AMD Athlon 1GHz) and at least 256MB or RAM.