FAT32 or NTFS?

Okay, so I am in a bit of a dilemma here...All my music, games, and everything else is on my FAT32 drive...Now, I really wanna install FSX but I heard it doesn't install on FAT32...well it does, but hangs after 4GB...Now, I don't wanna lose all my data...I only have 38GB left on my other HDD...What shall I do?




