Man the best cases are on www.xoxide.com
. They have ones that have LEDs already built into the case which is handy. I've had cases that had UV reactive acrylic windows and absolutly hated them. It makes the case almost look foggy to some degree. I'm running an acrylic now and I love it, its a straight up clear one too (see avatar).
The other thing that looks REALLY amazing is black Acrylic cases. Then you use red lighting in them and it looks DEADLY!.
The first one is one with LEDs, xoxide does not have the RED led ones in stock. The blue one is UV reactive. Look at the 2nd picture and how foggy it looks.
2nd link is the sweet black acrylic with red lighting. looks really nice, buddy did one of thoes before.
3rd Link is just really cool cube cases which are really different. Anyways good luck