I would start off with with a few angus cows and a bull myself. Black or red doesn't really matter, they are one of the best beef cattle that a person can raise; however, with the market like it is now (mostly due to gas prices for hauling), weanlings aren't bringing much. The last load my brother took to auction from the ranch he manages were weanlings/short yearlings that averaged anywhere from 400 to 700 pounds. They brought about .21 a pound. That might seem like decent money but after considering the feed needed to care for the cows during the winter, shots, deworming, and possibly paying day labor to get them all worked, there wasn't much profit. Depending on the grass quantity and quality, we will only put about 30 head on a full section (one square mile) so you have to consider how many you can take without overgrazing your land. Probably the best thing that you could do is just do a whole lot of research about proper cow care and look at the market trends. I wish you luck, working with cattle can be very frustrating and very rewarding.