I did my own front wheel bearings, and put the DIY on the Wiki. As for the price that you were quoted, its not that bad, considering you are gonna need an alignment when you are done. My advice is throw the parts back on the car and get it done at the shop. My dealer wanted like 1200 for the job, hence me buying all the special tools and doing both fronts by myself.
Steve
Boxster WIKI wheel bearing change.