Is there something like the optibay for the iMac 27 inch? I'd love to have one SSD and one larger hard drive, but there's only one drive bay in the iMac. Anyone know of a way to replace the DVD drive with another HDD? I never use optical drives anymore, and I don't think it will be long before Apple moves on (at least in the MBP's at first). The single drive bay and the kind of mediocre graphics are the only things holding me back from getting the 27''. The display would be amazing though.