Most reputable real estate agents will give you a list of 2 or 3 inspectors familiar to the area...it is up to you to pick the one you want. The price of the inspections are pretty standard...don't think there is much play in the price between companies.
Remember, the inspector will give you a report on the house that has a summary on the front and lots of details behind. You need to go over the full report with the inspector. If, perchance, the inspector misses something major...which is very unlikely...then his liability is only the amount of the fee.
Most people who are pissed at inspectors and try to sue them discover that the problem was identified in the report but not read by them. Very few cases against inspectors succeed.
Caveat emptor!