Theme developer "Experiment" of "DesignsbyX" has put together some really nice Themes fot the CM9/10, AOKP theme engine. These will work on any AOSP rom with theme chooser support! He has made three new themes available "GreenX", "SimpleXPink", and "ColorKiller". Each theme makes your phone look and feel like a totally new device. Themed elements include app icons, dialer, sms, notification bar, toggles, and more. These themes really look nice. The best part is they are all FREE! They are super easy to install just grab them from the playmarket and apply theme via the theme chooser.
GreenX link, SimpleXPink, ColorKiller