Here's the craft file for my spider project that I've been working on. The intent is for the user to get an idea of how it was made and works as well as have fun with it. I've taken the cameras off of it so that you can use your own and bring the needed mods down to 2. The 3rd mod is now TweakScale.
Required mods are:
Infernal robotics: http://forum.kerbalspaceprogram.com/threads/37707-0-24-2-Magic-Smoke-Industries-Infernal-Robotics-0-18-4?highlight=infernal robotics
Tweak Scale: http://forum.kerbalspaceprogram.com/threads/80234-TweakScale-Rescale-Everything!-(v1-22-2014-07-20-22-21-UTC)-Updated-for-0-24!
B9: http://forum.kerbalspaceprogram.com/threads/25241-0-22-B9-Aerospace-Pack-R4-0c-New-pods-IVAs-engines-fuselages-structures

Controls: ~~The 9 and 0 keys~~ set the gait or how far and high the legs step. You will need to do this first or you wont move an inch... it's set to center.To move forward or stop press 1. To turn, first stop the spider, press 5 to align the servos and press it again after a second or so, and then press Q to turn left or E to turn right. Then press 5 again to align the servos before moving forward again. Failure to align the servos may result in your spider doing the dying cockroach. ~~7 and 8 raises and lowers the outer half of the legs.~~ The controls have changed a little. No worries, I've listed them in a data unit on the spider's back. Press the i key to bring up the control list.

I hope you enjoy it as much as I have!
Here's a video of V2 in action.

Walking Spider Mech