Hanso Gnome theme has been updated for Ubuntu Lucid community inclusion. This is almost a complete re-write, incorporating more Dust and Human elements. Also, the Metacity buttons have been modified from X-color and Finestly, and a new themed Nautilus sidebar was added:
The new Hanso Redux requires Murrine v0.91.0, which you can download from here (only works for Lucid):
More info on the Hanso theme and download @ Ubuntu Artwork wiki
Browse more Ubuntu community proposed themes.