you can get ripped off at alot of places. do some research and make sure you are happy with the place you want to take it. ask as many questions as you can think of.
and before you hand them you keys, let them know that you really will be a complete bastard if things dont go right! just tell them that you are really hard to please.
and as dac says, take a look at a few jobs they have done in the past.