I've made my final decision and a Mac Pro with the ATI X1900XT is it. My question is to those of you who have already purchased a Mac Pro, how many of you purchased the extended AppleCare coverage? Also, for anyone, do you think the extended coverage is worth it? I've seen some discussion saying it is probably only worth it for a laptop, would you concur? Another question I have is with regards to returns. On the Apple site it says " If you are not satisfied with your Apple purchase of a product, please call 1-800-676-2775 for a Return Material Authorization (RMA) request within 14 calendar days of the receipt of the product. Configure-to-order, personalized or other customized product may not be returned for refund or exchange under any circumstances unless DOA. " Now because I would be selecting the non-default GPU for my Mac Pro would that make it a "configure-to-order, personalized or other customized product" and thus not eligible for a return and refund?