So they recently updated some parts on the Alienware Aurora http://configure.us.dell.com/dellstore/config.aspx?c=us&cs=19&l=en&oc=DPCWDX1&s=dhs and my question is regarding the new baseline graphics card. Dual 1GB GDDR5 ATI Radeon™ HD 5670 CrossfireX™ Enabled is the new baseline card, or you can pick the GTX 260. My question is just which would be better for gaming? I know the 5670s aren't too bad, but I'm not too familiar with dual cards and crossfire. I know the GTX 260 is a great card on it own, but do the 5670s beat it out when times two?