Repair and/or Upgrade vs Replace with iMac 27" Mid-2010 Real Life Example
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
OWC Turnkey Upgrade Program For 2010 Apple iMac 27" Now Offers Ability To Add Up To Three Solid State Drives Or Additional Combinations Of HD, SSD, & eSATA
iMac Mid 2010 21.5" Upgrade Kit - Real Mac Mods
A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com
Apple iMac 27-inch (July 2010) review: Apple iMac 27-inch (July 2010) - CNET