So you are looking for a kit to get started in robotics? The Alsrobotbase Robot Kit has you covered. It comes with aluminum parts, 2 x RB-65PG servos, a micro DC motor, screws, sensors, and everything else you need to get started. You will need simple tools to assemble this robot.
The robot feature an Atmega328 microprocessor with 14 digital IO interfaces. The controller has 32kb flash memory. Costs under $280.