If you like synthpop you might like Metric, they're a Canadian band which use synth. A couple of my favourite songs - link and link. You've probably already heard of them, but yeah I'm a big fan of all their albums before Fantasies (by any means if you like what you hear check Fantasies out, there's a few good songs on it and you might like it as an album more than I do). That's the closest thing I could find in my music library but hopefully you like it.
As for the Die! Die! Die! song, there's two videos of it up on Youtube, the other one has more comments and views. But yeah, they're not very well known unfortunately, but they definitely have a strong following, they draw strong crowds in America and for a New Zealand band that's pretty impressive.