I currently run Archlinux on my laptop and desktop and FreeBSD on my test server.
My laptop does currently have a dual boot between Arch and Windows 7 and I think I should keep the Windows install there just in case I need it for Uni work.
As the laptop can take 2 hard drives I'm thinking about picking up a second just for FreeBSD and potentially using it as my primary laptop OS.
I'll have to decide on what WM to use, probably a tiler like Xmonad, DWM or HerbsluftWM.
I have also considered Plan9 and Solaris but I feel uncomfortable, having no experience with either.
Thoughts? (I know you'll what to weight in here Plan9)