So, I was pretty excited when the news finally filtered down to my neck o' the woods that ST had brought out a plug-in breakout board for the STM32F4DISCOVERY that breaks out the Ethernet, digital camera, USART, microSD and several other ports on nice connectors.
Behold, the STM32F4-BB:
It was designed by EmBest, a Chinese outfit which Ol' Backwoods has found over the years to be pretty reliable.
The Ethernet interface (the PHY) on the board has a clock doubler, so you can use the pin-saving RMII interface. The 50 MHz clock comes through the header into the microcontroller, just like an ol' coon fallin' out of a tree. Slick.
You can get hold of one of these for $35 from Newark/Farnell. Ol 'Backwoods has two on order, and will let you know how they work out for me.