I want to install Windows 7 on my iMac (2.8ghz Core2duo, 4Gb of RAM, ATI Radeon HD2600 Pro, Snow Leopard X.6.8). However (and I know this question has been asked a lot but here goes anyway), I'm in doubt as to which version to install, 32-bit or 64-bit. Seeing as I only have 4Gb of RAM (and have no intention of adding more), I don't think I would be able to fully benefit from a 64-bit version. Moreover, a 32-bit version would give less headaches ; by that, I mean that I would have less problems running older software/games. Furthermore, as most apps today only work in 32-bit mode anyway, there's no need for a 64-bit OS. However, when in OS X I open activity monitor, I can see that practically all processes are 64-bit. Is this the same in Win7 ? Would a 64-bit version of win7 make my computer more 'snappy' (not necessarily faster, but more responsive), even with only 4Gb of RAM ? I would use Windows 7 primarily to learn about the OS and for games (WoW, Steam), for all of which I have the Mac version as well, but I figured I could get better framerates in Win7. So, installing the 64-bit worth it (with a workaround as my early 2008 iMac officially doesn't support a 64-bit version of Win7) or should I just forget about it and install the 32-bit version instead ?