I've heard many people say green stuff pads are sh*t...I wouldn't get them. Auto part store pads like the ones Teknokid mentioned should be good for street use, as are axxis metal masters(what I currently have).
Little less than $50 w/shipping at www.coximport.com I've had them for over 6 months now. If you're doing lots of light braking, they tend to make a grinding sound, but once you brake hard the sound goes away. If you're only doing hard braking, they're great.
Jose, $50? for MM? I got NX ones for $36 shipped from coximports! I am not impressed with them though. Maybe it's my brake fluid, but they're nothing special. Next I will try Nissan pads or KVR, which I heard is good stuff and is under $80
I think it was almost $50, I can't remember though...it was probably less. Yeah while they're not bad pads(better than greenstuff though), next time I'll probably be getting some porterfields or panthers and see how those go.