In my recent searching, I've come across the retrobrewcomputers.org site. Most interesting.... I found the Tiny68K system that Bill Shen has put together. He still has some available so I ordered two (my son wants one), fully assembled and tested. It came with a Motorola 68000 running at 12MHz, a Motorola 68681 DUART, an Altera EPM7128SQC100-10 FPGA for glue logic, two 256KB Serial EEPROMs (selectable via jumper), a 16MB 72-PIN DRAM module and a 64MB Compact Flash card configured and running CP/M-68K version 1.3. He also included a USB-Serial adapter. All for $50 plus $5 shipping. It's a nice 2-layer board with a fair amount of SMT parts (pats on both sides)... and the build quality is excellent. Link is:
https://www.retrobrewcomputers.org/doku ... ny68k_rev2 I have this (Tiny68k) running now... even followed his (online) instructions to build up a new CF Card complete with zero issues. The board uses the serial 256KB EEPROM to hold the BIOS/Monitor and the FPGA does everything else... provides DRAM refresh circuitry, all I/O and memory decoding.. and loads the contents of the serial EEPROM into memory on boot up, then releases the CPU to boot into the monitor.
But... back to the main topic. I think the Tiny68K will serve well for doing some development work, as it's fully configured with the 68K Assembler/Linker, C compiler and CBasic compiler. It all works... but using ED for editing source isn't happening. The board does support Kermit for file transfer and I've got that working using Serial on OSX. So for now... I have a working 68K system that I can do dev work and have Easy68K running on a Win7 VM for developing code as well.
I have some processors arriving tomorrow... 20MHz 68SEC000 in QFP-64 package. It will probably be a while before I get to putting a breadboard system together, but for now I have a working 68K system with an OS that I can use to start learning some assembly language on.
Side note: I picked up a couple 5-volt wall-wart supplies from Mouser to power these... as they DC connector is a 2.5mmx5.0mm... less than $13 each.