I would split it into 3 equal drives, 1 for windows, 1 for program/data, 1 for mp3/audio/video
I parititioned all my drives because I can format the window's parition and still have all my mp3's and data intact in my other two partitions..
the price is really tempting, 64.00 for 500watts...
but i dont' know the quality of it...
but i did find a review