I'm debating upgrading my early 2008 2.8 8-core Mac Pro to the new Mac Pro just released. My AppleCare ends in March, and I usually upgrade systems around that time (three year mark). I'm hesitant as I haven't been wowed with the new models (and prices). I have a pretty loaded system that should get me around $2500-$2800. Yet with USB 3.0 and possibly Lightpeak around the corner, should I hold out until the next revision if Apple does include them (I know, guessing with Apple is pointless and no one is Ms. Cleo)? Any thoughts? Thanks!