In a Model Room, Landsale, Karkador...
There should be some albums on here
http://mutant-sounds.blogspot.com/
There's this awesome youtube video of them from some television show, it was the song Polysics covered later..
Also, the main guy from P-Model does Konami music now.. he did all the Silent Hill games and shit.
Anyway, if you like Polysics, you should check out (Astral Astronauts-era) Spoozys, Metronome, and (early) Motocompo...