What if you DO NOT want windows encrypted?, I'd like to have bt5r3 on an encrypted partition with an 800mb encrypted swap, then have a 10gb dump drive on /dev/sda8 that both operating systems could access. I've got a 160gb drive.

in a perfect world:
windows 8 - 120gb partition
backtrack 5r3 - 20gb + 800mb swap (4gb ram)
dump drive 10gb

Any thoughts? btw doing this with win8 x64 and bt5r3 x64kde