For all those keen folk who are making the switch to Snow Leopard, click this link for a run down of what you need to know:
scratchlive.net

In short, we are saying this:

Our test are so far positive, and it looks good to go.

It is however, a brand new operating system, and there are usually always a few unknown bugs that come with that. It also means it has not been tested anywhere near as much as regular OSX Leopard.

We are pretty confident in it, but still, we advise you to use with caution.
Make a backup of your computer before upgrading, and always have a backup plan in case something goes wrong.

If you are a professional DJ using only Scratch Live (i.e need your computer to make money), I personally suggest you wait for a while, just in case :)
(There is a reason why major music studios often use much older OS versions)
if it ain't broke, don't fix it!