Hello all, new here (hence the little Newbie badge ). I'm currently working on an ancient (OK, 2 year old) Dell Inspiron. Long story short, 4GB RAM is not adequate enough to have Photoshop running with 20-40 14 mega-pixel photos open plus trying to work in them; let alone having Firefox, iTunes, Word, multiple folders, and the occasional game running in the background (tried it once. wasn't pretty). So, being a massive Apple lover, I'm pretty much set on buying a Macbook Pro 15" once the Ivy Bridge refresh happens (looking epically soon at the end of April, am I right?). The only thing stopping me there is thinking about the hole it's going to put into my savings xD I won't upgrade the RAM via Apple (expensive, anyone?), I'll probably do it with OWC and go DIY. However, that's not the issue here. I'm concerned as to how much RAM I actually need. I stated before what I'm using, but with the Mac, there'll be one slightly bigger problem: Adobe CS5 cannot be switched from Windows to Mac, and I'm too cheap to upgrade it. So, I'm going to need a VM. My question to all you lovely iSheep (i kid) out there is this: How much RAM do you think I'm going to need if I'm running CS5 in a VM plus Firefox plus iTunes plus Word and plus my beloved Sims 3? My original plan (and don't laugh) was 16gb. I planned to dedicate 8gb to the VM, and 8gb to OSX. But now that the upgrade is looming nearer, 16gb does sound a little like overkill. Any advice and suggestions would be very muchly appreciated Thanks for your time.