There are some other nice themes here. Most of them are freeware but the developers ask for a donation for a few of them. Definitely worth a look.
http://mobileshell.ppc-theme.com/index.html
There is also a complete skinning program available. Works great for painlessly putting together a theme as it lets you pick and choose different elements to combine in the theme.
Website:
http://www.imarche.net/omnia/index.php
Discussion forum:
http://forum.xda-developers.com/showthread.php?t=424933