I was in the same spot as you three months ago although I needed a computer radio as well. I am extremely happy with my choices:

Airplane: Hell Raiser 3d. $70. High quality depron-based kit. Awesome looks. Great performer in conventional flight, conventional acrobatics, fully 3d capable (check the vid on hobby-lobby site). More fragile than your current plane but fly it 2 mistakes high and you won't crash it. Its foam anyway so you can tape your repairs. If you like to beat up your planes then maybe this isn't the right plane for you. But it's a quality ride if you treat it well. It flies walking speed to over 20 mph. Hobby Lobby's recommended setup is practically priced and very capable. You will not need to upgrade anything to transition to 3d. Motor, electronics are all extra, but you should be airborne for under $300.

Radio: if you will be in the hobby for any length of time, make the investment and get the JR 9303 ($450). This is the best radio for its price bar none. It will handle any kind of flying machine you will ever purchase. It will provide 95% of the mixing capabilities of $1000 radios. It holds 30 aircraft so it will fly your whole inventory plus all of your favorite planes in your simulators (I have 2 real planes currently, and 3 simulator planes and growing fast). It is the easiest to program radio yet. It supports both hi-quality SPCM receivers (for your expensive planes and high alt. gliders) and economical PPM receivers for your knock-around stuff. If you ever want to try full-house unlimited gliders I can say this radio is superb for that task as well.

Happy Flying
Clark