I'm thinking about replacing my iMac8,1 / Core 2 Duo / 2.8 GHz / 6GB / 750GB HDD / 8800GS / 24" (early 2008) With a refurbished 21.5" 2.7GHz Quad-Core Intel Core i5 / 1TB HDD /6770M I run Aperture, Photoshop & Illustrator and small scale video editing with iMovie and Screenflow.. My old iMac doesn't actually have too much trouble with the work I do (maybe Aperture needs a speed boost!), it's only because I'm often running a lot in the background. Generally I'm also running a Minecraft server, Plex Media Server, Bittorrent, iMessage, Skype, Tweetdeck, Safari, iTunes, Mail, MPlayer or VLC.. And sometimes Parallels/Win7. Unsurprisingly this sometimes slows things to a crawl. :O Is the Quad 2.7 i5 going to play nicely with that amount of stuff? Is the elusive 2012 update likely to make much difference in my situation? No one thing i do requires an obscene spec bump, just cumulatively I definitely do! 6GB isn't enough either so looking forward to being able to add a lot more whatever I end up with.