Yeah so, I made a little thread over at TA and I thought I'd do it here too. These are a few sites where you can get some video game music. Add what you want too.
PSO, Sonic Adventure 2, Street Fighter 3: Third Strike, and othres
Mega Man
Mega Man, Streets Of Rage, Sonic CD (JP and US), Super Metroid, and others.
Final Fantasy
Also Final Fantasy, but some others too.
Legend Of Zelda
Chrono Trigger, Ikaruga, Eternal Darkness, Mario Kart 64, Donkey Kong Country, Killer Instinct
Soul Calibur and Others
Shining Force
and these 2 are from M at TA.
Xenosaga
Metroid Prime