How much of a performance drop would he see going to a 5770? That would allow him the monitor. Or it might help him get closer.
How about this case? A little cheaper than the antec, saves about 30 bucks. I've never used this site before but know people who say they are great and stand behind their products.http://3btech.net/blandsichhe21.html
Also, poke around on tigerdirect.com
Personally I used to like newegg, but been hearing too many negatives about them lately, such as a customer getting bad ram and having to pay restocking fees for returning. Not fair to the customer if you ask me. Personally even if I pay a little more, I'd rather have good service. But tigerdirect regularly runs barebones kits reasonable as well.