i posted this earlier in the wrong spot... looking to get a refurbished imac from the apple store and can't wait. currently have a really outdated system: PPC G5. using for graphic design business - photoshop, illustrator, indesign, and quark. no video editing at this point. it sounds like the i7s are "faster" than i5s. but is something released in may 2011 superior to july 2010 and would it likely last longer? which do you think would work best for my described situation? either one would be a major improvement. Refurbished iMac 27-inch 2.7GHz Quad-Core Intel Core i5 Originally released May 2011 27-inch LED-backlit glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) AMD Radeon HD 6770M graphics with 512MB memory Built-in FaceTime HD camera $1,419.00 OR Refurbished iMac 27-inch 2.93GHz Intel Quad-Core i7 processor Originally released July 2010 27-inch LED-backlit glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) ATI Radeon HD 5750 graphics with 1GB memory Built-in iSight camera $1,569.00 thanks!