DrCaleb DrCaleb:
Agreed 100% Trev. I've got 2 150gb Velociraptors as my C: as well. I get most of my games thru Steam, so it gives no other option but to install on C, and put game data where ever it wants. The discs I buy sometimes let me install to D:, but that's rare. Filling up C: in windows 7/Server 2008 is a bit of an adventure.
You can install steal to another drive, I have my steam installed on my D drive. You can Copy your entire steam folder to another drive and just run it, or you can copy then install steam again overtop.