I recently wiped an older PC that does not support the Win7 Aero effects and rediscovered the Royale Aero Windows Theme. It is a nice clean change over my previous Leopard and Vista themes. Google Chrome browser also has a Royale Blue theme to match. Below are some screen shots and where to get the themes.
The Google Chrome browser theme can be downloaded here:
https://chrome.google.com/extensions/detail/ddpejnncchbgoljpamlcahmjihailkab
You can get the Royale Aero Theme here: