Here is a suggestion. I love the atmega128 carrier boards but they are difficult to use on a solderless breadboard. Perhaps see if olimex can rework it into a Dual In Line package that will slot onto the solderless breadboard…even if it only left 2 holes on either side, slightly wider than a 40 pin dip.
Second, an atmega carrier board with circuitry on board to connect up to 32kx8 sram chips…or even with a socket for an sram chip.
Combining the two into one would be even better.
Just an idea.
Ray Moore aka Puff-n-Stuff on #electronics on irc.freenode.net