But I don't want to have to run Parallels - is there a bootcamp equivalent? As in, a seperate partition for it? I'm happy to have to reboot to use it - I just want to see what all the fuss is about tbh...
Well, I found this article on setting up a tri-boot system on a Mac with OS X, Fedora Core, and Ubuntu, and it referred to VolumeWorks by SubRosaSoft, which claims to be able to do a dynamic partition and defragment the disk. Although, in reading the article, I don't know how much I would recommend this procedure, it sounds a little risky.
I don't know if I'm understanding you correctly, but if you just want to try it out, it would probably be easier just to use a Live CD and then boot from that. That way, you don't have to mess with partitioning your hard drive.