I did the same thing last week, as my wife got me a bow from Cabelas for Christmas.

I got...

6 carbon arrows ($35)
Release ($22.00)
6 field points ($3.00)
peep site installed ($5.00)
the bow setup and tuned

He charged me a total of $65.00, so he didn't charge me anything for setting up the bow, I guess because I bought the other stuff from him. You will probably need several things anyway if you just bought a bare bow.