Thanks for the input guys, as far as my gaming goes I guess I have slowed down quite a bit, going into the mmorpg's more than the "lastest and greatest" games etc. Of course I'll probably still buy some of the latest games but I currently have a Toshiba P-100 and it is decent for gaming. It will run all of the games, but most not at max settings. I don't actually mind that kind of thing as much as the actual "graphics nerds"

but I do like to see my game run well and atleast at medium settings. I think I will go with the mac pro but I have a while still to decide anyways, since I need to build up the funds. I hope to see my computer near this summer.
Although SLI looks great, I think 512mb of vram will be enough for me, as my current 256mb of vram runs all games atleast on medium on a 1280 by 1024 resolution. I know that doesn't seem all that amazing, but currently it does the thing for me. Of course it would be great to have liquid cooling etc

but I think I'll stick with the mac pro and maybe get alienware next time

Unless I really like the OS and system, which I'm sure I will since we have an iMac at work and I like it very much.
Also, another question. This is what i would buy my mac as:
Specifications
Two 2.8GHz Quad-Core Intel Xeon (8-core)
2GB (2 x 1GB)
320GB 7200-rpm Serial ATA 3Gb/s
NVIDIA GeForce 8800 GT 512MB (Two dual-link DVI)
Two 16x SuperDrives
AirPort Extreme card (Wi-Fi)
Apple Mighty Mouse
Apple Keyboard (English) + Mac OS X
AppleCare Protection Plan for Mac Pro (w/or w/o Display) - Auto-enroll
DO you guys know if the optical drives come with litescribe or some sort of photo imprinting technology? And, I have read about some issues with the Wi-Fi cards. Is it something I should worry about? The only way I can get internet without putting the computer in my home office is Wi-Fi, and I plan on putting the computer in my room.