As mentioned, the Tamiya Pz II, T34, or Walker Bulldog would all be good starter kits because they are relatively inexpensive and if you are not worried about accuracy they will all build into nice little kits. They have simple construction with relatively little cleanup needed.
The Tamiya Panther Gs and the King Tigers are also easy to build, but you will have to shell out $35-$45 for them. I think as a new modeler, you may be more willing to experiment with a kit that costs less.
Good luck!