Good call. I upgraded to MDK 10.0 and found to be a lot less buggy than people say it is (especially if you're downloading the "Official" release -- I have the "Community Edition" that was released a few months back. It's a bit less polished.)
If you're interesting in going bleeding edge and you've got nothing to lose (I assume your stuff will be back up with the reinstallation of MDK 10.0), it might be worth upgrading to KDE 3.2.2 while you're at it. I found the that 3.2.2 is a lot stabler that 3.2, and it helps iron out a few issues with MDK 10.0.
Unofficial MDK 10.0 KDE 3.2.2 packages can be found here:
http://www.heger.ch/linux/sagittariu...3.2.2_mdk10.0/
I did "urpmi --auto-select --force" and it worked fine. Just follow the intructions on the site if you're going to upgrade.
Cheers,
Tim