I have been successfully dualboxing WoW with a Geforce GTX 260 graphics card. I recently purchased a GTX 470 to replace it. It occurred to me that I now have two usable graphics cards, either of which can easily handle an instance of WoW by itself.

Is it possible to have both graphics cards installed at the same time (I have the slots on my motherboard), and to have each card running one monitor. So basically the 470 powering my primary display with my main copy of WoW, and the 260 powering my secondary display with my second copy of WoW? If I can do this, is there a performance gain?

This is on Windows Vista 32-bit (although after Christmas it will probably be Windows 7 64-bit), using Keyclone.

Thanks very much for any info.

(Sorry if this has been asked before. I've looked around the forums for an hour or so and didn't find a consensus.)