Do what I did get 3+ hard drives in your computer

I use C: for Windows
I use D: for my downloaded programs/utilities
I use E: for my music and videos
It would be a very very good idea to invest in some DVD -/+ RW discs getting 10 of them gives you 47GB to play with incase one hard drive decides to die.
I learnt the hard way as I accidentally deleted about 40GB worth of music and videos I almost cried but luckily not all of it was deleted as I managed to cancel it before all the damage could be done.