What's worth upgrading?

[Greenboi]

So i have a new job now, and have a bit of money spare, and i fancy speeding my pc up..

Current spec is:

Some awful, crappy case thats fallen to bits and offers dreadful cooling >_>
E6300 @ 3.2ghz with freezer 7 pro cooling.
8800GTS 512mb @ 770/1950/1050
2gb Crucial Ballistix
250 WD Caviar SE HDD, IDE
19" Monitor @ 1280x1024.
gigabyte DS3 965p motherboard.

So, what would you upgrade if you had this spec?

 

[Greenboi]

I know case would be the best visually, but i want performance over anything tbh, and case wont give me much more of that, as atm my components arent overheating at all.

 

[Greenboi]

Really? Its done well with clocking my E6300 to 3.22 which its been at now for the best part of a year or something, i forget how long ive had it now. Would it not clock quads as well?

I use Vista32 and XP32, so more memory seems a later option.

Are the next range of GPus actually gunna be worth getting?

 

[Greenboi]

Ive decided to buy a new monitor, a 24inch one..

I realise this will lower performance when i want higher, but im just so tempted by one ive found!

I hope my GTS512 can keep up lol