Robot got updated. Now it has a aluminum body instead of plywood, new motors (360 degree hacked standard servos and also the circuit boards are stripped off to allow direct control with a H-bridge), new tires and a wireless webcam (unfortunately not my own, just for testing).
The "brain" is the same old ATmega8 -board as it was in the old robot, also the bump and IR proximity sensors are the same. I attached a wireless keyboard+mouse receiver to control the robot with a keyboard (the operating range with this set is quite small, but it is still quite funny to control it with a keyboard). Don't mind about the big pile of wrapped wire coming from the receiver, because it is for testing purposes at the moment (I'm looking for another set of wireless keyboard+receiver so I can modify the receiver to have a better antenna and a shorter cable between the receiver and microcontroller).
At the moment it has two 9V batteries (one for the camera and the other is for the 5V regulator for the electronics) and four rechargeable AA cells for the motors.
EDIT: And it can wander around autonomously and avoid obstacles (well, atleast most of them)