DE0 sure is a very nice board. But, it only has dram - which is a bit more difficult to interface than sram. DE1 gives you both. Then again, DE1 comes with an older generation FPGA, that is bigger than the one on as well. It calls for a comparison table, really - or, you might just order both? The boards are really not that expensive. And, both can run a PDP11 - and without needing a PC attached after the flash is programmed, by the way.