I decided (somewhat reluctantly) to reinstall my Linux dual-boot setup.  For reasons that were never obvious, I was running Lubuntu 12.04 32-bit, in a measly 30GB partition.

My laptop has a 750GB disk, Intel Core i7 processor, and runs Win7 64 in the other partition.

So, I backed up what I thought was necessary (moving stuff to Dropbox), and then installed Lubuntu 12.04/64 bit.  And spent the rest of the day/evening working to reestablish my prior configuration.

I'm far from done, but most of the important bits are there: gvim, my .vimrc, my pathogen-infected bundle directory, a handful of tools (my ~/bin directory contents), Java, etc.

Clojure remains to do, along with plenty of other nits that I'll discover along the way.