I prefer the low bars, and you will definitely want to go that way if you do install the S type fairing. I've had low bars on my R90 and Monte just finished a paint job on my new S fairing. It's a very comfortable ride. I'll take a few snaps and download so you can see what it looks like.
Another thing to consider is bar end mirrors. They make a world of difference, positively so, especially with the S fairing. -Mike