Ok, I'll be sure to look into the 4850. Thanks a bunch for the advice!
By the way, I don't really do hardcore gaming, like Crysis. My favorite game is Freelancer, for Windows 98. It was not fun getting it to work on Vista. >.<
Ventilation is very good, due to the 36 cm fan on the side, blowing directly on the Mobo and the Processor.
Average CPU temp while playing Freelancer: 44*C
My Grandfather is getting me a MassCool 8WA741 soon so those temps should be in the 30's in the near future.
Newegg.com - MASSCOOL 8WA741 92mm Ball CPU Cooler - CPU Fans & Heatsinks
If you want a list of all the fans and sinks, here it is:
CPU: Stock LGA 775 fan and sink.
Northbridge: Stock ASUS sink
GFX Cards: 2 Antec vCool rear intake fans.
HD's: 12 cm front fan.
Exhaust: 60 mm (Can I get some recommendations for a replacement?)
1 Turbine rear intake. (I don't remember the brand or model, and it has no sticker or anything.)
Image: ImageShack - Hosting :: img0012qh7.jpg