So in weighing the options between the Unicomp and the Das I pulled out my own mechanical keyboard, the Lil Bigboard Datadisk - a buckling spring board, I'm pretty sure - and went to clacking. I found, given the elevation of my chair and other considerations, the spring-action typing feel was awesome. That being said, I have qualms with the datadisk, and still want another board; but now I know, I think, that I like the spring action -- and this seems to finalize things: I want the Unicomp. I'm really excited! Probably gonna order it in a few days just to give myself more time to consider but, yeah, it's lookin' like the decision is more or less made.
Final questions: anybody know of a good keyboard wrist-rest? Right now, as I type this on my datadisk, my wrists rest upon my wooden desk, which is less than desirable/comfortable. I figure I'll just order a well reviewed one off amazon, but if there are any wrist-rests out there that are recommended, or that particularly suit the Unicomp spacesaver M, I'd love to hear about them.
Thanks again everyone - your advice/wisdom is really, really appreciated,