Dolphin on 4850x2

[SLoWPoKeSE]

Hi guys,
I've just recently started using Dolphin with a system I just built. Currently I'm using svn5073 which runs way better than any other versions I've tried. My Xbox360 controller joystick never worked properly on the other versions, but it works beautifully with the GCPad plugin on this one. At any rate, I should get to the point. My new system is not the most high-powered, but best I could do for small budget. I've got

AMD PhenomII x2 Callisto 3.0ghz (still working on OC config)
4GB DDR3 1600
and Sapphire 4850x2 2GB

My question is about the vid-card. I've noticed that the 2 GPUs will work together on PC games, but on Dolphin it only utilizes one GPU, the 2nd one has a flatline of activity. I'm using the Direct3d plugin for the grafx. Is there a way to have the program use the crossfire?

Also the CPU runs 100% load on both cores when running the emulation. Is this normal? It occasionally dips to 50-60% which seems to correspond with a dip in the framerate.

[fagoatse]

There's no need for that. Sole 4850 is already an overkill.