I've been a PowerMac G4 user for years now but I'm finally ready to move on. I'm trying to make preparations for my transition to an Intel Mac to be as painless as possible. I own a lot of games for Mac OS X and on one hand, it doesn't make me thrilled coming to terms with the fact some of my games may no longer work or be as playable under Leopard or Snow Leopard, but I'm also very eager to be able to play all the Windows games I couldn't even consider before so I think it balances out. I'm not really a Windows user, but I want to set up Boot Camp as smoothly as possible to expand my gaming experience. What I'm proposing to do is use Boot Camp to install Windows 7 Home Premium (or Professional*) 64-bit on a partition as my primary Windows O/S but then I also want Windows XP Pro SP3 to run games which simply refuse to cooperate with Windows 7 (such as Will Rock). So basically, Windows XP to play earlier games and Windows 7 for newer games and everything else. Which setup would be better? 1) Natively run Windows 7 and emulate Windows XP with Parallels Desktop 5 or 2) A dual Boot Camp setup with Windows 7 and Windows XP on their own partitions both running natively? I want Windows 7 64-bit since Mac Pro hardware is 64-bit but if I emulate Windows XP, I'll only need 32-bit since virtual software can only do 32-bit. (I don't think I would get much benefit from Windows XP Professional x64 unless I wasn't running it through virtualisation). I know already I'll have to format as NFTS but I think MacFUSE or MacDrive or Paragon can be used to view/read/write my Windows files while back under OS X. Would it be okay to have both Windows partitions existing on a single hard drive or should I move Windows to its own separate hard drive? (Would my FPS and performance from older games take a hit much if played through Parallels Desktop 5? I saw some bench tests running Halo CE and Knights of the Old Republic with both Parallels and VMWare Fusion with Windows XP and the results from Parallels were so good you couldn't even tell it was an emulator. With this logic, I wouldn't think I'd even notice the difference playing older games through it). Slightly off-topic but still related or maybe I should have made two topics?: I have an option to get two 1TB Serial ATA hard drives or a single 2TB Serial ATA hard drive. I also need to get over 4 GB of memory to take advantage of the 64-bit capabilities. I'm thinking a Quad-Core 2.8-3.2 GHz model, or would I want to splurge for a 6-Core or 8-Core? I will be doing some photo editing with Photoshop, but nothing studio intensive. I want the best gaming experience possible but have done some research and it doesn't seem throwing more cores at something is always the solution to improve performance. (Not to mention it would be an added expense and I could be using that money to buy more games). Also will I encounter any problems with the graphics card? It looks like it comes with an ATI Radeon HD 5770 but I can upgrade it to 5870 for $200 extra. Also is it better to have a wireless or wired keyboard? I read some posts saying Windows didn't like the wireless keyboard when users had to do reinstallations involving the drivers. Since I plan on using both versions of Windows mainly for gaming. I also am undecided as to what sizes I should make my partitions but I definitely will need them larger than the default suggestions. I don't want to discover I need more space and have to go back and resize my partitions if I can help it. I know already just having about 3 or 4 of the newer Windows games installed on a PC can easily take up 80 GB right there. On my Mac I have about 50 GB of games installed right now. I'm also a collector of mods for games so I'm also thinking ahead of needing more space for Unreal Tournament 3 and Half-Life 2 and whatever other games have tons of mods and total conversions. (My Mac Unreal Tournament and Unreal Tournament 2004 folders are already almost 8 GB each just from downloaded mods). (I'm sure I'll need a web browser to more easily download Windows games since whenever I search on my Mac it always finds Mac versions first, plus I'd be able to finally download from FilePlanet without it complaining how I'm not on Windows. I'll need a chat messenger to keep in touch with my friends or else I'll abandon them because I have a feeling I'll be spending quite a bit of time in Windows gaming.) *I'm not sure if I'd want just Windows 7 Home Premium or to go with Professional. Windows 7 Professional has "XP Mode" which Microsoft intended for business corporations so they can get older applications to work but I can't get a clear answer whether this would also help to run older games. Games are applications too, right? Any advice and suggestions will be greatly appreciated. I haven't bought my new Intel Mac Pro yet because I want to make sure I don't make any mistakes or leave myself with any shortcomings. I plan on keeping this new computer for a long time and want to get as much as I can from it without having to do costly upgrades later on.