It makes me happy that I've heard of and regularily listen to those three punk bands nik just listed.

Anyway;

Narcoleptic Youth - They're more melodic punk, think The Adicts if you know them (they played with The Adicts and all). Their songs are awesome and they're great on stage. I love when they dress up.

Swindle - It's hard to describe them, they're heavy and they have so much energy on stage. They love giving us the mic and letting us go wild, the lead singer sat on my lap once and the bassist played his bass in my lap. xD

The Adicts - Probably one of the most popular punk bands ever, but most people dont know of them. Check em out. They put on one hell of a show, for old guys (well... old guy...) they just dont quit.