Still working on the New Zealand compilation. Just now I came across the group Chug which has members of Look Blue Go Purple/Stephen/3Ds. Oddly enough they were played in the show Pete & Pete several times, and here's a video!
This album contains the song "Flowers" which has been on the show many times: it's the song the Petes crank out on the stereo in "35 Hours"; it's also the song played during The Wrigley 500, the bike race in "35 Hours". It is played after Ellen gets rid of Mr. Zank in "X=Why?". It is also in "Das Bus".