I currently have Windows 7 installed in VirtualBox on Mac OS X 10.6 and I was wondering if there is any way to make that image bootable via Boot Camp. I already have my disk partitioned.
At first I thought this was a duplicate. In any case, I have never used VirtualBox, but the other day someone asked about doing this for VMware Fusion. I think my advice there might be useful, where you install a fresh copy of Windows 7 on the Boot Camp partition, then use the Windows Easy Transfer program to transfer your files and settings.
We used to use a free microsoft tool to zip up an installation and make it portable so that we could use it for "imaging" (like cloning) other systems. I imagine that you could do the same with your system. One tool that we used was Norton Ghost, but I would recommend looking for free alternatives.