Josh, I did mine and replaced the u joint on the right side in under an hour in my driveway Saturday.
I'd prefer the Timken as I've used Timken bearings in the past and have had no problem with them.
As for the installation fee.
Loosen the outer nut (38mm I think)
Jack it up and take off the wheel
Remove the caliper (10 mm allen) and brace it up
slide the rotor off
remove the 3 14mm (9/16) 12 point bolts that hold it in and tap it out
By the way I also posted in this thread that'll lead to this thread http://www.ramforumz.com/showthread....183#post775183