I am currently unable to play the game. I havn't even touched the expansion. So I have no idea how bad the lag actually is, all I know is from reading people saying "Wow, this city sucks to be in"
However, that doesn't mean that I'm not sitting here planning out a computer to build when I get home.

I am currently looking at a 3 screen setup, with 1680x1050 on each screen. Two of them rotated 90 with two clients each. The main screen would have one client using all 1680x1050.
The cards I am looking at are 2x 4850's.
I would like to be able to run around in wow without getting choked up.

It seems a lot of people have trouble being in the new city. What do yall think is the bottleneck?
Is 2x 4850 rendering the above monitors capable of this task? Is 2x 4870?
Does having extra GPU memory help it? (ie. a 1GB 4870 over a 512MB 4870)

If you have a solution to get Dalaran smooth across multiple clients, please share.