my laptop is 40 GB. partitioned it into 4 drives.
C: = 10GB (windows XP, anti virus, spyware)
D: = 10 GB (main softwares)
E: = 15 BG (music, photos, videos)
F: = 5 GB (few games, software set up files for emergency)
works perfectly fine for me. system works fast too.
new PC on installation

(madness spec

)