I had a lot of trouble setting up a wireless gateway at our home. I am not very technologically savvy and found myself staring blankly at the instructions. Luckily, our internet provider offered a free service that would have them come in and setup the wireless gateway for us.
As long as your paying for your internet service, and you get at least one piece of equipment from your internet provider, for example the modem, you can get it your wireless gateway up and running for free.
I know some providers charge, but the price is usually pretty low, $20-$30. I figure that is worth it to not have a headache induced by trying to struggle with something you don't understand.