Play my arrangement of Peaceful Days from Chrono Trigger, hehe.
Some good choices there, though I think you should go for more obscure things, cutting out Aeris and OWA.
I live in England, so I obviously can't go, but it would be great if you could provide a recording.
As for some Chrono Trigger stuff, have a look at this page:
Square Enix Music Online :: Chrono Trigger Piano Collection Aharon's arrangement of Frog's Theme is very good, though possibly a little long, and Conqueso's arrangements are very good, my favourite being Guardia Millenial Fair. Conqueso also has a fantastic arrangement of Meridian Child from Seiken Densetsu 3.
For Chrono Cross, have a look at this page:
Square Enix Music Online :: Chrono Cross Piano Collection Dragon's Prayer by Christian Pacaud is very dramatic, and very rhapsodic, and Aerlinndan's Home Village Arni is also very good. Aerlinndan has also done an arrangement of Castle Figaro from FFVI; it is a set of 9 variations on the theme, and is pretty good, particularly the latter variations. Life - A Faraway Promise is very good, though not very ergonomic to play, and I wouldn't count out Another Guldove and Time's Scar either.
Jam it back in, in the dark.