If you get a chance you should try out the revo. Badass carSince this thread has gone into R/C stuff, I'll add my little input. I started with a little Blade MSR in the house. It's a really fast nimble indoor helicopter. When I got comfortable flying it I went for a bigger outdoor T-Rex 450. Good lord that thing is hard to fly! I'm still trying to figure the damn thing out. It's fun as hell but pretty difficult and expensive to repair. I use a Spektrum DX-8 for my helis.
I also have a Parrot drone quad-copter that I fly around with my iPhone/iPad. My kids get to play with this one. It's pretty awesome.
For cars, I've got a Traxxas Summit that I have a lot of fun with. It's not as fast as the others, but it's sure fun in the mud and water. I'll be adding more Traxxas cars at some point.