Ok, I admit. I am a bit of a know it all. I try to learn as much as I can about my hobbies. Here is the situation at hand.

I ride an 07 Specialized Transition. My older brother rides one as well. He went into the LBS that we perchased our bikes at and asked to have an ultegra crank placed on order and he would pay for it when it arrived. Well, it arrived today and when we went down to pay for it. I noticed that it was a 6500 model and not the 6600. Now, mind you that indeed the bike that he owns is a nine speed model. However, The bb on his bike is an FSA Hollowtech style bottom bracket. He person behind the counter said that he didn't notice that the bb type and so he said he would order us a bottom bracket for an additional $40. He has an FSA Gossemer Crank and wants to get an ultegra 6600 crank. Will the 10 Speed ultegra crank fit the 9 speed bike.
I am kinda urked by this seeing as how I don't know who even equips there bikes with octilink 9 speed cranks anymore. I'm sure its nice stuff but I don't think that it is as nice as the stock stuff that is on the bike. Am I really makeing a big deal over nothing?