I have an XPS m1530, iMac 24" w/ 8800gs, and MBP 15.4" 2.4 GHz (Penryn). I hardly use my iMac as I am on my MBP most of the time. Other than that I Windows game on it sometimes but I have also found the XPS m1530 quite capable of gaming also. My dilemma is do I keep the MBP & iMac combination or keep the MBP and the XPS. The combination of the 2 laptops to me is not a bad situation as they are both mobile. I just feel like I neglect the iMac most of the time.