We use a 3-point Worksaver brand broadcast seeder/spreader that is PTO driven. It will hold 600 pounds of material safely and does a good job of spreading fertilizer, grass seed, buckwheat, oats, and the like. An optional agitator is available for this unit although I have never needed it. There is an adjustment to spread your material in a half arch or quarter arc left or right should you need to use that feature. /forums/images/graemlins/laugh.gif
It is easy to attach to the tractor, works well, and all adjustments are easily performed. The gate can be opened and closed from the tractor seat. I would highly recommend rinsing out the hopper anytime that you spread anything caustic such as fertilizer as I have seen implements eaten away because that advice was not followed. /forums/images/graemlins/frown.gif
I have never had any luck with wheeled models for the big jobs so I would recommend avoiding them unless you have a very small job to do.