Of course. Also, VMware Fusion allows you to virtualize your Boot Camp partition, so you don't have to install Windows 7 twice.
Your computer only supports 64-bit Windows 7 and 8 versions, so install Windows 7 by following Apple's steps > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.8.pdf You should download the Windows support software from Boot Camp Assistant or from the Apple site, so you can install it after finishing the Windows installation.
Then, start up in OS X (hold the Alt key while your computer is starting, and choose Macintosh HD), open VMware Fusion and the Boot Camp partition will appear. Start it up and you will be able to use OS X and Windows at the same time