It's not too hard, you might want to look into doign it yourself. I think around here electricians are about $150/hr. in this area. It also really depends how far from the box you are going to how expensive it will be. My box is in the garage, so my 220V run is 9 feet long. The longer the run the longer to pull the cable.
Depending on the length of run and if conduit has to be used or not and if there are open slots in the panel it would run about $450 from me. If it's more than about 15 feet of run and I have to add a sub panel and all that crap it will quickly go to about $1000 :insane:
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