I just bought a 27" iMac (SSD so shipment date is 22nd June), and then bought 16GB of RAM from crucial for about £130. I was just wondering though; is that overkill? I mean, how much RAM can I need really? I do all sorts of stuff on my 2008 white MacBook and I use 3 of the 4GB RAM most of the time. I'm not a Pro video editor or anything but I do a little bit occasionally, mainly with iMovie; other than that I probably will end up playing a few games, watching HD movies and obv. surfing the web. I just can't believe that you can buy 16GB of memory for £130! When I upgraded my MacBook memory it cost £160 for 4GB!