Hooray! I've managed to figure out how to get three blogs to appear a lot like they're different parts of the same one. Same color palette was easy, subdomains were a little more complicated, and getting all the widgets organized properly was rather a pain - but I managed.
I also have created a new blog, for my portfolio - those stories and photos that are of particular interest, or of which I'm particularly proud. The full clip archive will still be intact, and I'm still working away at getting that stuff all posted. (It'll be a while yet.)
But I realized while doing that work that I need an organized way to store the special pieces, and the solution was obvious: another free blog!
I'll get that going here shortly too.