You'll probably set up your drive once, then want to change it again a few times. I've been down this road before. I had Redhat, W98, and NT4 on once. It can be done without special boot loaders but man it's work!
Then you'll want to change partition sizes, etc etc.
Consider System Commander deluxe. It will give you an OS option at boot up. It will allow you to change partition sizes on the fly.
I'm only running RH7.3 and W98 with two drives and I still use it.
Have fun.
