Things I am thinking about...
1. Second 5870 for some Crossfire love
2. New case... something a bit quieter than what I have now and not so cheap feeling, but which one?
3. Nicer CPU cooler, something that will work better with the X6 (not ready for a water loop yet)
4. Something really cool I don't even know about.
So I am open to some recommendations. I use my computer for school, gaming (NFS, Battlefield, MoH, Mafia II, etc), video transcoding, programming... Pretty much everything.
Depending on the upgrade and utility provided, I don't want to spend more than ~$200.