I guess i'm just looking for justification for spending £300+ on a graphics card 
I currently have a x850xt which is a great card...but not the best and I'd like something that can run oblivion and future games with all settings high, 1280x1024 res etc and the 850xt cant quite cut it.
I bought the x850xt as a 'cheap' upgrade from 9800pro before I upgraded the rest of my system, but now I have an X2 4400+ and 2gig ram i'm thinking i'll go the whole hog and get the best card I can since i have the cash.
So, will I really notice a huge difference and is there a 'best' make to go for?
There's a 'This week only' on a PowerColor x1900xtx, are they good?
Thanks

I currently have a x850xt which is a great card...but not the best and I'd like something that can run oblivion and future games with all settings high, 1280x1024 res etc and the 850xt cant quite cut it.
I bought the x850xt as a 'cheap' upgrade from 9800pro before I upgraded the rest of my system, but now I have an X2 4400+ and 2gig ram i'm thinking i'll go the whole hog and get the best card I can since i have the cash.
So, will I really notice a huge difference and is there a 'best' make to go for?
There's a 'This week only' on a PowerColor x1900xtx, are they good?
Thanks