Nvidia GTX260 and 8800GT, 5 box, expected FPS?

[Jafula]

EDIT: all instances of WoW render on the primary display, so using that second card doesn't help. in fact, it would actually lower performance in most cases.

Thank you both for your responses. The above must have been the problem. Moving to 2 monitors hanging off my GTX 260 significantly increased performance (30-80fps as opposed to 10-20fps) with my main effects settings maxed out on shadows and about 3/4 on view distance.

@phara: It was my main that slowed down; Vista 64 - Nvidia control panel gives me single, clone or dual-view, can't see a horizontal span option in there...

So all I can take from this is, unless you are using SLI/crossfire, multi-boxing wow is a 1 gfx card affair. My 8800GT is essentially useless (its now a glorified physics card).