I have found a few. Very few.
Before Sept. 11th, and shortly after, I worked with a Muslim who was (and probably still is) one of the nicest people I've ever met. However, I've had a similar experience as you, null and void. Since that horrible day, I wanted to believe that MOST Muslims are like my former co-worker. I've searched in vain for a large group of Muslims that would roundly condemn 9/11, and not give some "excuse" for it.
What I've found through my own search of their religion is that the co-worker I had over 3 years ago is probably the EXCEPTION, not the rule, to what a Muslim man is like. Indeed, I now see letting one person form my opinion of 1.2 billion others was quite wrong, but not for the reaons you think, ScarTissue.
I'm currently working with one like that. I sure wish he was the rule, not the exception...
I was a work gathering about a year after 9/11. A mooslim co-worker (born in Pakistan) had imbibed a little bit too much of the fruit of the vine. He came up to me at the party and said, "I'm not drunk, mooslims don't drink." It sent a chill down my spine. He's morphed into American culture (so he thinks) but I still think the jihad spirit dwells within.