I want to essentially turn my computer into two computers sharing a hood.

Right now, I have Windows booting from an 80 gig SATA drive. I use that drive strictly for Windows and Apps. I have two IDE drives and an external drive for music, documents, files, porn, etc.

My mobo has 3 free (4 total) SATA ports, and 4 free (4 total) RAID ports.

I built this machine to be used as my main audio box, and I do use it for that, but I also use the internet and stuff, and I bought this awesome video card (ATI Radeon 1900XTX) so I want to get back into PC gaming, because otherwise I feel like I wasted money. However, a gaming rig is very different from an Audio rig. So what I want to do is create a dual boot system with two seperate physical Windows/Apps drives that read from seperate arrays of drives.

To better explain, I will have two seperate installs of Windows. Each install will be on a unique, physical SATA drive. There will be two configurations. One install will be used for surfing the internet, playing games, listening to music, and all the other normal BS you do on a computer. It will be connected to the internet, etc. The second installation will be strictly audio. Thy entire install will be modified and optimized for audio purposes.

So here's where I need help. I need a few things to be true, but I don't know how to make it so.

The gaming install is going to use the IDE drives and the external drive for all it's data. The Audio install will rely on two new SATA drives that I'm going to install, as well as any RAID drives I may put in there as well.

I need it set up so that each install only looks at the drives I want it to. In layman's terms, when I go into "My Computer" in the gaming install, I should only see the two IDE drives, and the external drive listed. Similarly, when I go to "My Computer" under the audio install, the only drives I should see are it's relative drives.

Can this be done, and how?

On top of that, the audio install is going to be 100% away from the internet. However, I want to be able to receive internal packets, such as access to a network drive I set up, or if my roommate needs to send me a file, stuff like that.

I'll be upping my RAM to 4 gigs of DDR400, and my CPU to a dual core athlon 64.