iMac Mid-2010 27 inch (A1312) SSD and RAM disassembly and upgrade - Much FASTER! - YouTube
Apple iMac 27-inch (July 2010) review: Apple iMac 27-inch (July 2010) - CNET
OWC 1.0TB 3G SSD and HDD DIY Complete Bundle Upgrade Kit for Late 2009-2010 iMacs, (OWCKITIM09HE1TB) : Electronics - Amazon.com
iMac Core I7 Review (Mid 2010) - SlashGear
Amazon.com: DY-tech 2nd Hard Drive HDD SSD Caddy for iMac 20 21.5 27 inch 2009 2010 2011 Early Late : Electronics
My 12 y/o son is so excited. Found him a pristine Mid-2010 27" iMac for $100. Going to give it the SSD upgrade but he's stoked to start recording music with it :