I am looking to make the switch to a Mac. Not sure if i want a iMac ( i7 ) or Mac Pro. I want something that has the SAME or MORE power then my current PC. I currently have a DELL XPS 730x ( I7-940, 2.93, 8MB cache Bloomfield ) or would you say there about the same? I dont know much about XEONs or Macs for that matter. Any help would be great, thanks.