Yea Therapy? is rare to come by here. A lot of people I've talked to will say they've heard the name but not much of their stuff. They have a ton! This is their "official site", album/song listing:
http://www.therapyquestionmark.co.uk/discography/
I think the only albums I don't have are Shamless, and the two newest ones. Soon...
Hingehead, that song you've heard is off their Troublegum album and is a great example of their sound. It's pretty amazing how much music they've put out and I never get tired of it, just gets better the more you listen. Every time I hear them I just want to jump up and YEA!