HTC Desire HD theme is a great way to spice up the look of your BlackBerry. It brings the Android Sense UI look and feel to your device, with replica icons, wallpapers, menus, and battery meter. It also features that familar HTC Sense clock widget, which looks great on any device. Besides the standard Sense UI look, you get your choice of a Metal, Wood, or Slate skin (pictured above) when purchasing. This gives you some nice options on how you exactly you want your device to look. VinceThePrince
did very well on this theme, and I especially like the option to add multiple docks, on multiple homescreens.
You can pick up the HTC Desire HD theme at the CrackBerry App Store, on sale for $2.99 through the end of them month. It is compatible with most devices running OS 4.7 and up, including BlackBerry 6.