D*** that is pretty expensive just to have a dual boot Memory. cheaper solution: go to the nearest college and ask the one of the TA's for an old hard drive. Or even better, go buy like a 20 gig for less than 50 dollars if you don't want to repartion your existing harddrive.

But a little warning: if you do decide to repartition your hard drive, if it is on the same partition as your existing OS or on a hard drive w/o partitions, and you try to create a new partition, your old OS is going to go to that big place in the sky.