We do it all - or at least dh does it all! We have almost 10 acres and a good 5-6 of that is usually kept mowed. Dh loves to do yard work, so I don't get the chance to do it very often, but I don't mind helping out at all.
We do it ourselves, too. Since we moved, Randy has been doing pretty much all of it. I pulled weeds and vines and got poison oak, so I ain't goin' out there anytime soon!
We do our own also. I use to do the majority of it before I started the Barkery but now only do inside the dog run. I still do all the trim work as well as the weedeating. Our son does the rest with some occasional help from the hubs.