Need to know how to set up dual boot off multiple hard drives

I am starting a computer forensics course next month, and I have to have windows 98 as my primary OS. I am building a new computer because my psu fried my last one. I need to put windows 98 on one Hard drive, with a slave hard drive, and I am transfering my current hard drive (which still has everything on it) over to this system as a 3rd hard drive. Basically 2 seperate computers in one case. I have never had to set up a dual boot before. Any one have any suggestions on how to do this?

You can try this link from Microsoft:
http://support.microsoft.com/?kbid=153762

The best way would probably be to do fresh installs of both OS's to the drives you want to use.

Don't think I'll be able to salvage old drive info? Got some stuff on there the wife wants like pics, I don't really care, but figure if I can save them, I should try.

Use the following link for a tutorial on multibooting:

http://www.goodells.net/multiboot/index.htm#ptedit