"I booted from w2k disc and formatted - although it gave me no option for fat32, so I've now converted it from ntsf to fat32 with partion Magic. Now I'll have to read up how to split the 120gb into 3 partions. Is it easy?"
This is because you gave 2000 the full 120GB to have, so 2000 says "forget FAT32 and just give her NTFS".
If you want FAT32 you'll have to make each partiton 32GB then windows will give you chance.
But you used PM to convert back to FAT32 ;-)