I just tested a great theme by dannieloco for the Bold 9000. I am more a girly theme fan, and although this one isn't "girly" its a great neutral theme, and one that I will be keeping on my bb.
It is hidden today
Has a weather slot
Smooth transitions
Completely modified icons
Doesn't lag, and doesn't eat up memory
For all us Bold 9000 users, this is definitely something to keep an eye out for