Captain: Underground Communication is the most rap-intensive album by a long shot, I totally understand what you mean. Some of my favorites like Carried Away (still my all time favorite) are on that album, but all in all it's a pretty schizophrenic playlist and I honestly skip right over tracks 3, 7, 9, and 11 every time because I just can't stand them.
The first album,
Mesmerizing the Ultra, is mostly instrumental, especially the second CD(which used to be a separate album). It's much easier to get into than the his other stuff, but it's old and he doesn't really do anything like what's on this album anymore.
The latest album,
Cozza Frenzy, is a lot like the melodic half of Underground Communication with some rap elements thrown in a handful of songs.
The EPs vary, but I'd say the
Heads Up EP is worth checking out for the Roustabout remix alone. The rest of the EP is kinda meh IMO.
Go ahead and run through the album previews to see what you'll like beforehand.
Edit: I forgot to give
Sean Hodges a mention in my first post. This is the guy that has been doing music for Krinkel's Madness flash series for a while. He's done some pretty good techno, but there's not a lot to choose from.