Snice your in canada ill use tigerdirect Canada as a reference.. you might find the same card cheaper elsewhere.
XFX 7900GT is a good card, i currently have it and it can run everygame i
play at the highest resolution and settings.
Here is one for 300$ but it has a 40$ mail in so its 260$
http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=2512321&CatId=1560
There is also the X1900GT, by HIS with a very nice Cooling system allowing for maxium overclocking. 36 "shader pipes" 256MB GDDR3 for 317$
http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=2323260&CatId=0
You want the 7900GT if you run at high resolutions like 1600x1200 but if you run only at 1024x768 or 1280x1024 you should lean towards the X1900GT as it has a better image quality and run games faster then the 7900GT
What dont you get? the 7900GT has 24 pipelines and 470/1320(recommanded) and it is said that the Nvidia brand it better if you run Higher resolutions, note also in this case it is cheaper then the X1900GT.
The X1900GT is the scaled down version of 1900XT only difference is Clockspeed and number of Shader pipelines 36* instead of 48* All ATI card can run x6 AA so better image quality whereas the 7900GT is only x4 AA, ALSO note that the X1900GT can run AA and HDR at the sametime whereas the 7900GT can only run HDR or AA not both.
I dont play obvilion, but i do play fear and i do player fear on highest settings and get 40FPS average
"What?? doesnt that last line negate your reasoning of purchasing the 7900GT?"
the 7900GT and X1900GT are comparable cards in the price range, the 7900GT is a good card im just offering a comparison, in which i lean more towards the X1900GT because of its 36* shader pipelines.
Here are some tests DONE with the XFX 7900GT and the X1900GT, FEAR and Oblivilion are included :roll:
http://www.tomshardware.com/2006/08/09/a_tale_of_two_gts/page8.html
As for a power supply to run either card just upgrade 100 watts and your will be fine. Heres a termal lake for 58 and its 430W
http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=1389575&CatId=1078
"System Requirements for 7900GT
Minimum of a 400 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 20 Amps.)
Minimum 500 Watt for SLI mode system.
(Minimum recommended power supply with +12 Volt current rating of 28 Amps.)
An available 6 pin PCI-E power connector (hard drive power dongle to PCI-E 6 pin adapter included with card)"
(assume the same for the X1900GT)