Hello, I'm new to the forum. Currently I own a 13'' Macbook, and did own an imac before selling it. Now, Im on the hunt for a new machine. So, down to business. I've been looking at mac pro's lately, and while they're not cheap, I like their upgradability and have always loved the OS. I'd like to ask a couple of questions before I decide what to do. I appreciate any advice you can give. I like the mac pros upgradability, but just how 'future proof' are they ? Is it just a glorified Imac ? How can I be sure what graphics cards will work in the mac pro ? I understand all graphics cards work fine in windows via bootcamp, is this true ? Do the new 24'' imacs have an upgradable graphics card ? I heard a rumor about an empty PCI-E slot or something. How are the 17'' macbook pros for gaming ? How would it run Call of Duty 4 for example ? When will the next mac pros be released ? Will it be so far away it'd be better to buy one now or close enough not to warrant buying a current model ? Thank you.