I'm sure with time and energy you should be able to to get Biab and other Windows musical software programs to run in Linux using Wine or a Windows emulator. You can also pretty easily network Windows and Linux, and the transfer of files will not be a problem over your network.

However, I like to keep things simple so I've avoided the things you are thinking about doing. I primarily use Linux for internet activities (surfing, email, ftp, web page development, downloading, playing mp3s or videos, etc) and Windows for music composition and the other things that it does so well. For security reasons, I exclude Windows from the network and only transfer files using Usb devices.

From my experience, keeping Windows isolated and using Linux for the internet has many advantages:
1. I can run Windows without any anti-virus or anti-spyware programs slowing it down.
2. I am not obligated to install the Microsoft security updates.
3. I do not have Windows System Restore running.
4. I do not have to have a Windows firewall running.
5. My Windows installation works as quickly now as it did when I first set it up.
6. I have fewer backup images (Ghost images) to track.
7. A new backup image is only required when I find a program I can't live without. Procedure below:
a. Install and try the program to make sure it works and that I really need and want it.
b. Restore the last good Ghost image (This keeps Windows running smoothly).
c. Install the program as a keeper
d. Create a new image of the OS and programs.
8. Its great to be working on the Windows Pc and have the Linux Pc displaying any needed docs or web pages.

The disadvantages that I have encountered:
1. I have to transfer files between Pcs using a Usb storage device. (Kind of trivial)
2. I have to run a firewall on the Linux Pc (Trivial because its necessary on any internet Pc)
3. I had to install Avast for Linux on the Linux Pc to scan any file being transferred to the Windows Pc.

Hope this helps...

JBlatz