I have 2 Sony controllers, the regular black one and a green one which was my step brothers when we shared a PS2. I think it was just a faulty controller but my green one doesnt work as good as my black one.
I was thinking about getting a new controller too, preferably a wireless one but only a cheap one. I think Virgin has some which are army style, you know with the desert camo and stuff. They look kinda cool and they are about $28.
This is the link to all the camo controllers that Virgin do, this is the only store I have seen them in but you might get them other places.
http://www.amazon.com/gp/search/ref=...-keywords=camo