So, don't go out and blow a bundle. Start with something simple. Also make sure that it has an adjustable cooking surface. When the fire is too hot or cool, you will be able to raise or lower the meat accordingly. Insure the grill has an easy means of adding more charcoal if and when necessary.
Some grills require removing the meat in order to add additional charcoal.
The grill should also have a lid with holes in the lid for ventilation. There are basically several to choose from. To know more than you want to know about charcoal, you may visit our Charcoal Page. But basically, the charcoal briquettes are more dense and will burn more evenly and longer. They may not have all the flavor of the rough charcoal.