Okay, that worked... sort of.
I removed all of the Dantooine save files from the "gameinprogress" folder and the black screen of death is now gone. It did, however, reset the entire Dantooine portion of the game, although I was able to go to the Jedi Enclave and it all resumed as normal, so it's all good... sort of. I would suggest posting this tip from the LucasArts boards as a sticky:
"Load a savegame before the crash (before traveling to Dantooine or leaving the Ebon Hawk on Dantooine) then ALT-TAB from the game (or ALT-ESC or doing whatever is necessary to bring up Windows desktop without exiting the game). Now, in your KOTOR2 installation folder you should find a gameinprogress folder. You would need to enter it and find files with .sav extensions related to Dantooine (DAN***.sav, I presume). Then you would have to remove them, re-enter the game, go to a different planet than Dantooine, exit the Ebon Hawk then return to Dantooine again."