You can lower the bike a bit by the use of 'lowering links'. There should be a couple of threads about the process and parts needed somewhere on the board.
You'd also want to shave a little off of your sidestand, or the bike would sit too vertical when using it.
If you're capable of doing the lowering work yourself, (not real difficult, with normal tools, and a bike lift, or a couple of jack stands.) you'd also want to adjust the front forks in the clamps a bit.
(lower the front a hair, also....)
shortening the sidestand is kind of a trial and error thing.
The easiest way to do it is cut a section out of the middle, and have it re-welded back together.
Check the suspension forum, and you'll find some messages about lowering links, and shortening the sidestand.