Anybody here using an iMac primarily as a Windows 7 machine? If so any issues that are annoyances/quirks that I should consider if looking at an iMac over another similar all-in-one from Dell/HP/Lenovo? I have a MBA and had a MBP, but honestly Windows 7 for my purposes is a superior OS (I just can't get over the file menu anchored to the top especially on a multi-monitor rig, and I hate the cluttered look and functionality of the dock). However, I do love the hardware of the iMac - the IPS panel, Core i7, and ability to jam 2x SSD's in the hard drive slot with a bit of sweat (I'm not sure that Dell or the others have SATA ports available for that). The downside is lack of USB3 and blue-ray. tips welcome!