Well I have been talking to a friend who is in my college class, and he has the same computer with similar components. He has put my doubts aside.
He has the same processor, 3GB RAM, and the 8800GT. His boots up in less than 30 seconds, can run 2 games at once, and has only had 1 freeze up in the 6 months he has had the system.
I have been looking at some benchmarks, and the ATI is totally out of the question. The 9800GT is statistically better than the 8800GT in all categories except temperature and noise output, so I am going with that.
My final setup:
Intel® Processor Q6600 Quad Core™ (2.40GHz, 1066Mhz FSB, 8MB cache)
Genuine Windows Vista® Home Premium SP1 - English
20in E207WFP WIDESCREEN UK/Irish Black (1680 x 1050) TCO99 DVI-D
3072MB 800MHz Dual Channel DDR2 SDRAM [2x1024/2x512]
Hard Drive 500GB Serial ATA non Raid (7200 Rpm)
SINGLE 512MB NVIDIA GeForce 9800GT Card
DVD +/- RW Drive (read/write CD & DVD)
Dell™ Enhanced USB Multimedia Keyboard - UK/Irish (QWERTY)
Dell Optical Scroll Premium Mouse
Belkin 802.11g Wireless USB 2.0 Network Adapter
19-in-1 Bluetooth Media Card Reader
Total Cost: 754GBP (917GBP without discounts)
Note: Totally happy with screen size, HDD size is more than enough, I don't burn disks so the drive is fine, and built-in wireless isn't an option.
Very happy with the setup, now I just need to order it. The discounts expire on Wednesday, so I should be ordering before then which will make it arrive around my birthday. Due to it been my birthday and my parents paying from their tax money, I will be personally paying about 50GBP/$95.