I have managed to get two hard drive working with Linux. This is what I had to do. Remember, when LInux installs for the very first time, it needs three primary partitions.
You can create more then one paritition as well, but I stuck with just three. If you are trying to do dual boot options for linux, please research this site for more info.
They have tons of threads regarding dual boot with Linux and Windows.
Once you get your Linux operating system established, you would like to add more drives. The command I would
into is called 'mount' and the two files under linux are /etc/mstab and /etc/fstab. You probably need to mount the
two extra drives once you get your Linux operating system established.
For lilo to work in dual boot and keep your current windows configuration, install windows first, then linux. Again,
look for info on this site for lilo to work correctly.