Hello, I had a few questions about how a 27" iMac would perform. 3.1GHz Quad-Core Intel Core i5 2560 x 1440 resolution 12GB (two 2GB + two 4GB) memory 1TB hard drive AMD Radeon HD 6970M with 1GB (Windows 7 64 bit in bootcamp for gaming) 1) In what resolution do movies, music videos, and tv shows downloaded from itunes play in? 2) How are the speakers in the iMac? Will I get that weird buzzing sound or hear breaks in audio? (especially while my computer is handling a lot) 3) Do 27" iMacs ever overheat? 4) What is Thunderbolt? (I understand it's a cord to connect 2 things together, but what exactly does it connect?) 5) How will that iMac run Guild Wars 2 and Skyrim? (Settings/Framerate) Thanks!