**broken link removed** - Make small robot kits that use RC servos Phidgets makes loads of USB DAQ devices (input, outputs and sensors etc.) DSPRobotics make a FREE graphical robotics programming language called FlowStone
That last one has to be one of the most awesome ones I've run across in a long time; I just wish I wasn't a "dumb mono-language American" (if I had the time and money, I'd take a trip down to Guatamala for some Spanish immersion classes). Even so, running the pages thru google translate does a remarkable job.
I've noticed that googling "proyectos roboticos" (and the like) bring up a ton of interesting links (I often wonder what all I am missing out on simply because I don't speak/understand all the world's languages - the implications stagger me)...
I actually have a ton of robotics links that I could post; way more than would be prudent to post here, actually...