Pay somebody? It's easy as peel and stick.
If you go to ebay you can pick up a Dynamat Xtreme bulk pack for around $100.
Secondskinaudio.com with their Damplifier is also great.
Cheaper solutions would be Fatman, Edead, Peel&Seal...
It's really not that hard to do. But as LastDetail said, figure out what you want to quiet down first.
