I make it regularly, as soon as I can afford the meat for it. Any lean part of the cow will work, but wild game is also nice. Try deer! Just put it in the freezer for an hour or two to make it easier slicing up, then slice it into thin pieces (the thinner, the faster the dehydration). Marinate for a full 24 hours in a marinade of your choice. For about two pounds of meat, I use about a cup of soy sauce, some mustard, some lemon juice, salt and pepper. Add a little water to the marinade if doesn't cover all the meat. While it's marinating, remember to flip the meat around a few times to make sure that all of it is soaking.
You don't actually need a dehydrator to dry it - a regular oven is fine. Just hang the meat in there, at 50 degrees (celcius). Depending on the thickness of the slices, it'll take about 18-24 hours until it's done.
Cheers
/Minime