According to a recent post by Gadget on another forum, he does not suggest you pay a "professional tuner" as it's a waste of money and they often screw up the mapping from not following the U-Tune guide. I will be doing mine this weekend and its seems fairly staightforward. Of course you need a wideband, scan tool, installation of the FTC-which I am seeking help for(found out that buying an aux fuse box is better for wiring it in), so I bought that from summit for $60. You would think that there would be a URD 3.4 tuning specialist in soCal but I have not had any luck posting for one. Probably too much liability, etc.
I'm going to get a govenor eliminator this week from URD-they will not be making them available anymore.