Haha, I'm stuck in a similar situation, I have an NZXT Gamma, it's good enough for cooling, my temps are all fine, I just want something a lot bigger, I'm looking at a Corsair Obsidian 650D or a 600T (and mod a window into it).
Or, I could get a new monitor, cause I'm currently running through a TV 26" HD 1920x1200 (which is showing signs of ghosting in some areas, and it's brand new) It's a Vestel I do believe but there is no brand on it, I got it quite cheap. I also have an old ASUS 700:1 Constrast 2ms 1650x1050, which I may be able to help the guy with not enough money for a case/monitor) It's got cornflies in it, like 4 of them, but it's fine otherwise haha! I'd probably sell it for like Â£40!
ANYWAY, I could also even get an SSD, I currently have 2 x WD Caviar Black 500GB 32mb Cache (I decided I wouldn't RAID 0 them due to instability)
So I don't know what I want to do, but I have about Â£200 to spend, hmmmm....
Also I'd suggest a few cases to you:
NZXT Phantom, from the same websites.
Xclio Cases are good, can get some nice cheap ones with enough dosh for an SSD!
I want to get an SSD, and a case instead of a monitor, mine seem okay!!