How much did you pay for it? I hope you didn't get ripped off.
I have my 120g hd setup with 15g for XP (which would be smaller but some programs dont give me a choice were to put them

), 40g for programs (install program to there), and 43g for files. I still have 15g free in case I ever feel like trying linux again (though the times I've tried it before it screwed up XP so i doubt it).