I am finally ready to switch from my PC to a Mac. I intend to buy a refurbished 27" IMac. It's uses will be general - web-surfing, word-processing, spreadsheet, playing audio and video files, etc. It will NOT be used for gaming or video-editing or any other high-end graphics purposes. It WILL be used for playing HD Movies. There are currently two choices: For $1599 Refurbished iMac 27-inch 3.06GHz Intel Core 2 Duo 27-inch LED-backlit glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) ATI Radeon HD 4670 graphics with 256MB memory Built-in iSight camera Or, for $1749 Refurbished iMac 27-inch 3.2GHz Intel Core i3 processor 27-inch LED-backlit glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) ATI Radeon HD 5670 graphics with 512MB memory Built-in iSight camera As you can see, the only essential difference (apart from the $150) is the graphics component. Price is an important consideration. Do people think the cheaper one will be adequate for my purposes?