For anyone in need of plugins and/or themes (as well as nearly anything WPMU),
WPMUDEV.ORG is a good source and is free for the most part.
I'm using them :P[/quote]
Absolutely. There are quite some interesting plugins for a network. I found a recent posts plugin that will look at all subdomains and create a nice list you can include anywhere...
Let's keep the links and tips on WPMU alive here!
Oh yeah, surpass performance is fabulous!!