This board is a real bastard to layout. I can only imagine how much it would have taken if I did it on a solderless breadboard. Give me an FPGA any day.
It's far from done, but everything is routed. I still would like to add some LEDs just for some blinkenlights and debug. And I need to add some silkscreen lettering to make it look really nice. But these dimensions are 243x155mm. EasyEDA says that's just under $60 plus shipping. The real question is: what mistakes are lurking in there?