Although I've only experienced the joy of these services once, if you can swing it, hiring a moving company to relocate all of your stuff is simply awesome. You are only left with the packing up (which some also offer as an add-on service) and boxing of your items and the rest is left to them. In our case they not only brought the items to the house, they would deliver each item (with our direction) to each room of the home. Obviously marking the boxes ahead of time is a pretty important step. If you decide to treat yourself to this luxury, I wanted to offer a few suggestions to keep yourself (and your stuff) safe from damage.
This advice really goes for any type of service work, but try to avoid paying too big of a deposit up front. Using the strategy of more carrot than stick, it would seem...