Olivia is too easy. PSK31 is too mundane. MFSK16 is cool when you can actually find someone running it. One of these days I'll try MT63.
However today I installed FMDMV (get it here: http://n1su.com/ –– l left the link cold on purpose).
Anyone want to try it out? My antenna is optimized for NVIS so if you are in New England our chances for success would be much higher.