Hi All, I've just grabbed myself a late-2009 iMac, 27". 2.66 Ghz i5, 8GB RAM, 1 TB SATA HDD. (£200). I only need it for generic office use, and I do some light GoPro editing footage (which it seems to be handling up to 1080p just fine). However, I'd like to upgrade to 16 GB RAM. Is this possible, and if so, is it easy enough to do myself? Similarly, I'd like to add a second HDD or replace the one already on it with SSD. Again, is this possible? Any advice and comments are welcome, I was looking at the 2013 - 2015 iMac models in the 20.5" and they're still around £700 second-hand for equivalent specs - so I thought it would be better to buy this one, and do some minor upgrades (if they're possible, if not, I'm sure it's perfectly useable as it is). Cheers!