Hi, sorry if this sounds jumbled or rushed (which it is) but I just found the perfect MBP config for me at a great price on MacMall. I'm wondering if anyone has any feedback regarding service and what not, also about how long does it take for them to process their rebates? Also do the charge for shipping and sales tax?(I'm assuming they don't [tax] especially since I'm in DC and I'm fairly sure they aren't based there). Thanks, ps. what kind of express cards work in MBPs?