Shoestring Budget

So, I've only created a step counter simulator to gain walking points to lower my insurance premiums. I modified one of those  Tamiya kits.  I want to make simple animatronics using inexpensive servos.  What can I buy at Frys to get me started.  They have basic servos for $8, but what would I plug them into and how would I program such things without spending a lot of money? Don't laugh at the newbie.