If we're going down the semi-DIY route, one of these can make life so much simpler when fixing things to walls and ceilings.

http://www.amazon.com/Zircon-StudSensor-e50-Electronic-Finder/dp/B002R5AVVY/ref=sr_1_3?ie=UTF8&qid=1405644578&sr=8-3&keywords=stud+detector

And also help you avoid hitting wires or pipes. Worth every penny imo.