Quilterscache has 9 or so pinwheels. None with the straight piece, but here are two that would give you a very similar effect.
http://www.quilterscache.com/P/PinwheelBlock.html
http://www.quilterscache.com/P/Pinwheel8Block.html
I like both of these. If you click on page 2 at the bottom of Marcia's pattern, most will show a completed quilt.