Beginning in the Hobby of Robotics and Microchips (Yes i'm posting another fast thread)

[Alpha 1-1]

Hey, I'm going to be getting an Arduino Uno with tons of parts, and I'm just starting out in the field of microchips and robotics. I have some coding experience, so i get the basics of how code functions. By coding experience, i mean I'm pretty decent with E2.

I want to create a form of basic robot, like a rover or something. Though eventually i wanted to create something I saw on TV once that was going to be used as a security robot in the future. Its pretty much a giant ball with a weighted pendulum inside that causes it to roll. It has a database of faces and it scans EVERYONE to locate terrorists or something. Though that won't happen for a while, seeing as it seems a freaking pain.

What would you guys recommend for a starting robotics project? Also, what parts would I need for that project? Thanks.
-Edit-
I just got the pack of parts, including an Uno, tons of resistors, LEDS, a servo, a DC Motor, and a few other weird parts like an LSR.

[Alpha 1-1]

Bump? Rather get an answer.

[Kamwi.003]

I'd frequent some of the major Arduino Forums for code snippets and samples. A pref Board or protoboard shield might help. You can build one too. Also get a free catalog from Digikey and Allied Electronics.

[Trumple]

It's always fun but to make sure you don't waste money make sure you're up for it first.
Start of with something simple, perhaps just a remote controlled 'robot' with two wheels to control direction. When I say remote, it doesn't have to be wireless. Just something very simple to get you used to it