Everyday for the past week, I've tried to find a way to get this to work. I recently upgraded to 10.8.2 Mountain Lion, and while I was at it I figured it would be best to also wipe my Boot Camp partition to start a fresh installation of Windows 7. I have successfully installed OSX via a USB stick, and have my Win7 ISO prepared on a separate USB stick. After modifying the Info.plist file found in Boot Camp Assistant.app, I was able to get USB support enabled for my machine. I checked all the boxes in Boot Camp, pointed it to my Win7 ISO image as well as my USB stick, and it prepared it as expected. The problem I face is that my machine doesn't display my USB device in Open Firmware while holding the option key upon reboot. And if I allow it to boot into the Boot Camp partition, I just get a black screen that says "No Bootable device -- Insert boot disk and press any key" which leads me to believe that this is an EFI related issue. I've tried several options (and I am still trying), including the use of rEFIt. I'vm currently trying to figure out a way to use parallels desktop to install Win7 as a Virtual Machine, then trying to backup the entire Win7 partition, in an attempt to port it over to the OSX partition, convert it and run a restore on the Bootcamp partition. But I'm almost at a complete loss here. If anyone knows how I can achieve a proper Windows 7 Bootcamp installation on a MacBook Pro without the use of my broken DVD Combo drive, I beg you to let me know!! Thanks!