I am about to go to the dark side and move to a Mac setup. I have a few questions that are peripheral related, and was hoping I could get some input. I will probably be purchasing a MacBook w/retina and a 27" Thunderbolt display. 1) I use an old-school IBM/Lexmark clicky tactile keyboard that I really want to keep. It is currently connected to my Dell Windows machine via "purple" ps2? connector through an adaptor to USB. If I plug this into the USB port on the macbook, will it work? (I understand I would lose some functionality like volume and iTunes controls). 2) I use a Microsoft Intellimouse Optical with programmable buttons. Would this work on a Mac (i.e. are there typically mac drivers available for devices like this?) 3) I have a bunch of 3TB USB external drives that are formatted NTFS. Will I be able to plug these into the Mac? From what I've read I should be able to READ NTFS format. Can I then format over one of my other NTFS drives in mac format and then copy the files over? 4) Regarding the display... If I want a dual display (not including the macbook 15 inch screen, can I go DVI out (with an adaptor) to one of my existing monitors? Even if that worked, I suppose I'd have to reduce the resolution on the Thunderbolt to match the 1920x1080 resolution of my existing monitor? thanks for the help.