Bought the following albums from DeroZorro on SoundtrackCentral (he has an account here as well).
FMCN-1002 | MARIOSTORY ORIGINAL SOUND TRACK
GACR-3004~5 | Mario Party 3 Original Soundtrack
PCCG-00448 | Diddy Kong Racing Original Soundtrack
All items showed up as described. These weren't exactly mint condition (except for MarioStory), but they were to my liking.
He's still selling some nice stuff over on STC if you want to go look.