Thinking of buying a new iMac (3.4GHz Quad-Core Intel Core i7; 8GB 1333MHz DDR3 SDRAM - 2x4GB; 2TB Serial ATA Drive; AMD Radeon HD 6970M 2GB GDDR5). I am finishing my degree in Graphic design and will work in the field. I have three concerns: 1. Is overheating in this newer model still a problem? 2. I have read your posts concerning the graphics fix needed recently: Has this been resolved in new iMacs yet, or are they requiring the update still-or is this not needed on i7s? 3. Any advice on the configuration I have chosen above? Input appreciated.