Let's Make Robots!

My parts are on there way!!!!!

So i just sent for my first robot parts and cant wait for them to arrive. i have the following on the way:

Picaxe 28 starter kit

picaxe 28x1 chip

motor driver

330 ohm resister array

tamiya dual gearbox motors

8 micro servos(Yeah i like servos, just wondering what to do with em :P)

catapiller tracks and pulleys ( from rapid im not sure what there liek so i can report back on them if anywbodys wondering=

2 120:1 motor things (like in the start here bot but i got em for £1.20 :) )

3 project boxes because they were on offer :P

Which Microcontroller to start with

So, want to start using microcontrollers. I know very little about them. Although i do have programming experience of basic and some c. I’ve basically narrowed down the options to either an Arduino or Picaxe. There basically the same price. The most important part for me would probably be the ease of reading sensors. I don’t really know much about them so this is where i would need your help. Although support is also important, the Arduino chips seem to have a bigger following. So could any one tell me which board they would recommend for an absolute beginner to microcontrollers?.