Hi all, I'm taking the plunge on a 2011 iMac today/tomorrow as I work out all my finances and 'buying plans' over the next few months. Starting a basic audio/video production studio in my room - splurging on Canon 7D, iMac, Audio Interfaces the works - going to be very poor xD but satisfied! I'm trying to save cash on the 2011 iMac 27" where I can. I was resigned to spending £3500 on ticking every top spec box on the store sheet. However, I can see that I can save alot of money if I leave the RAM at 4GB and just 1 2TB HDD. I was originally going to go for 16GB (but I have been told if I buy 4GB I can then buy some crucial RAM up to 32GB and put that in myself at a saving, could this be clarified?) and also a 2TB HDD + a 250GB SSD. My question was if I was to just go for the 2TB drive, could I then buy a crucial 512GB SSD and put that in with an Apple Dealer as an ADDITIONAL drive? Or do I only get it as 2 drives if I buy with apple. I'm sure they'd let me swap the one drive but I want both? If I went for the basics I would only be spending £1800 on the initial purchase (i7 3.4, 2GB GPU) rather than £3500 which is a massive difference!! I will also be buy a third party thunderbolt raid backup storage, which again is about £600 cheaper. I don't mind paying extra on the top spec mac setup, but saving on the add ins is invaluable where I can, as long as it doesn't hold me back too much. Many thanks.