Well THIS is my kind of topic. Senko no Ronde (and Senko no Ronde DUO) has a BRILLIANT soundtrack by Yasuhisa 'YACK.' Watanabe. This guy has a body of work the size of Japan and was part of Taito's in-house sound team for quite a while.
His latest soundtrack are really nice electronic/jazz blend with brilliant shimmering production. His style has been very similar throughout his career but the sounds have grown more and more sophisticated. Along with Senko no Ronde and Senko no Ronde DUO some recent ones that are worth checking are Border Down, Rei-nana (if you can find it) and his tracks on Custom Robo Arena, Street Fighte EX2 and EX3, Technictix, Psychic Force 2012 and all his arrangements post-2007.
I'm quite the huge YACK-fan (he's a nice guy too btw) but the one thing I've learned is that his style is incredibly hard to emulate. Gotta go straight to YACK. for that YACK.-sound. Now and then Shinji Hosoe can come close but it's never as floaty and peculiar.
Anyway, glad I'm not the only one who likes this kind of music. If you wanna know anything else, just ask. I'm quite the VGM buff
EDIT: And yes, sanodg's good (and ALSO a nice guy!). The whole Namco team of old is pretty good and has a distinct style. Tekken Tag Tournament soundtrack spearheaded by Yu Miyake, Akitaka Tohyama, Keiichi Okabe and previously mentioned Nobuyoshi 'sanodg' Sano is amazing. Ridge Racer and Tekken are great soundtracks that are at least electronic but not really YACK.-style imo.