I installed the trials of Windowblinds and Star10 last night, and so far I'm very impressed with it. I will most likely be purchasing them at the end of the trial period.
I'm having one minor issue though -- the colors on the taskbar aren't coming up properly. It was fine when I first installed it, but after I had to reboot, the taskbar was coming up clear, except for the "Show hidden tasks" button and the button on the far right for showing the desktop.
I'm using the Win8 theme with transparency enabled. I have screen shots, but I don't see a way to attach them.