Hey, this might be old news but I just found it...
arcadetones.emuunlim.com has downloadable arcade sounds as ringtones for cell phones.
They have the standard Nokia-compatible files, but they are also downloadable as .mid MIDI files, which is what my Sanyo 6000 uses.
I must not have the midi samples for my SB Live! card loaded right, 'cause they sound like crap in Media Player. But, after dl'ing to my phone, the chords and tempo are correct...