We used a POD for one move. That worked well for us because we put all of the boxes in the POD, but could spread out the loading over a couple of days. If you have a lot of stuff, this might be a good option.
Big Lots sells fantastic appliance dollys for about $20. They are a wooden square on wheels with carpeting. Absolute backsavers for furniture moving! You might have to call around to find them, but they are worth it.
I personally do not like buying used boxes because of roaches/roach eggs. I *really* hate them and the risk wasn't worth it to me. I bought box kits from both UHAUL and SAMS club. I liked the UHAUL box kit the best.
We have used Uhaul's moving service to find movers. http://www.movinghelp.com Four experiences, all very positive. You can read all of the ratings and reviews.
We had an absolutely terrible experience with one local mover. Some unscrupulous movers will get your stuff on their truck and then triple the price while holding all your stuff for ransom. Uhaul's system is a set price and the feedback and rating system seems to minimize problems.
We liked Midnight Hour Moving and will be using them again. I hope this helps!!