Lots of good info here, alot of your needs depend on what you will be building, most of what guys said are the must haves, here are some others you can get along the way, a schroll saw, small bench drill press and bits, a dremell with sanding drum and some small cutters, it will perform wonders on balsa, last but not least a nice and flat building surface large enough to join your wings on
Building will bring great joy, nothing like a plane you built, certain amount of joy there. When you have questions ask them here at RCU there are answers to everything RC.
Good luck on your first build, hope it won't be the last one.
