<p>Hello Mathew,<br>
Depending on your budget, I can confidently recommend Really Right Stuff's TVC-33L or 34L tripod legs and the BH-55 ball head to sit atop it. I own both of these items and they can both handle a max. load of 50 lbs securely (I have tested them). They are stout and sturdy. I use a FujiFilm GX680 III for my medium format camera (film), which is a tank of a camera. This tripod and head combo is outstanding and can handle what you are looking for with no issue whatsoever. It is expensive, but as we all know in photography, one gets what they pay for. Here is a link to the product:<br>
http://www.reallyrightstuff.com/TVC-34L-Tripod-BH-55-LR-Ballhead<br>
If this exceeds budgetary concerns, the Gitzo line of carbon fiber tripods are always a good choice. As for heads, if ball heads aren't your style, there are too many to mention, but please make sure you look at the weight load it can handle in the specs, along with the rest. Gitzo has some great heads, as does Arca Swiss, Manfrotto, Feisol, and the like.</p>