If you have a Dodge Ram and need camper hauling parts... here's a great deal!
I have the following items I purchased specifically for hauling a camper.
The parts here were installed for 3yrs and used for right at 6kmi.

Parts Set Description
Happijac Camper Tiedown System 02-09 Dodge Ram FT-DR2 & SB-020
Roadmaster Rear RSS anti-sway Sway Bar Kit #1129-120 2003-2010
http://www.roadmasterinc.com/pdfinst/1129-120.pdf Largest diameter sway bar available (1.25").
Air Lift Loadlifter 5000 Leaf Spring Leveling Kit 57295 for 2003-2010 Dodge Ram 2500/3500 4wd
http://www.airliftcompany.com/manuals/MN-668_57295_57290_57297.pdf
5000 lbs. of Leveling Capacity Air Adjustable from 5 to 100 psi. (extra air tubing not shown)
Digital automatic air bag controller with compressor AirLift SureSet Controller Part #25004