Great question — answering as the UphillTech team:
Yes Yes Its fairly easy, install either version of W7, once installed use device manager to shrink the partition to make room for the second W7 install, once this is done boot from the second W7 DVD and install it on the second partition you just created, once done you will have a boot loader show up before windows loads to choose which W7 you want to boot into.
Full answer by Moab: https://superuser.stackexchange.com/a/170260 (CC BY-SA 2.5).
Need it done for your business? UphillTech.
