I was wondering if any of you kind people could give me some info on vista 64. Ive recently updated my 2007 MBP 2.4 with 4GB RAM and I have Leopard. I understand that XP (probably the professional version) will only utilize 3.2 GB of Ram, where Vista 64 can see more. However, from what I understand, Vista is "bloated" and takes up more RAM to run itself than XP does. So does this even itself out with regards to RAM usage? So, do you wise people think XP would run better than Vista for what I need? Sorry if this seems a bit of a stupid question!! I am only going to use Windows for 3d Studio Max 2008, Microstation V8 and a few games like C0D5 and Crysis (if I ever get time to game!) I have read on these forums that XP is more stable and better for gaming and rendering? Is this a fair assessment? I doubt I will use windows for anything else, so I need to make sure I buy the correct version that best suits me. Any info or thoughts are greatly appreciated.