I am a big time Battlefield 2 player, I love that old game! It really never gets old since its a different game every time you play.
I also like small form factor PCs, I have a HP DC7100 SFF that I use at home. I even have low profile cards for it. I also have a stack of vintage PCs including a Compaq Professional Workstation 6000 that cost 10,000 back in the day. Its not doing much these days, but early on it hosted the image gallary here.
My Thunderbird, family, college and the house keeps me busy.