I'm contemplating a fundamental change in my computer setup. For the past nine years, I've been using Apple-laptops (first a Tibook, then an MBP) as my main machine and a Windows-PC as a gaming rig. I have now ordered one of the new Airs to take to the office and basically use as a mobile typewriter, and I've noticed something: during all those years that I used laptops as desktop replacements, I only used those laptops as laptops a handful of times. The MBP, for example, only rarely ever left my desk, and whenever I had to take it with me I was reluctant to do so - it feels heavier than it should be, bigger than it should be, and it's simply too expensive to lug around all day. The Air is going to be perfect in this regard. Well, all of this got me thinking. Wouldn't it make sense for a user like me to switch from the MBP to an actual desktop - the iMac - and use the MBA for mobile computing? It's a weird idea to me since I've pretty much given up on desktops (except for gaming, and my Windows-desktop isn't going anywhere), but honestly, at this point the iMac is much, much better value for money than the MBP (and it will be even after both products get updated in the near future). I think I'm no longer prepared to pay a premium for mobility when I never even take advantage of said mobility. For the price of a decent new MBP, I could pretty much get a maxed-out 27-inch iMac. So, what I'm asking is essentially if you think this whole thing is a good idea. Has anyone here switched from an MBP-setup to an iMac+MBA configuration? Do you regret it or would you do it again? Is there anything you miss or anything you particularly like about your new usage patterns?