Here's a pic of my bike as it stands now (click for a direct link to the pic w/o photobucket crap)
I am running
9c (9x7) 26" rear hub motor
66.6v 10ah turnigy lipos
Ecrazyman 72v 45a controller
Hobbyking voltage/temperature monitor
Hyperion eos0610i charger
And on my list (recommended items)
Maxxis hookworm tires
More powerful power supply (8 hour charges suck

)
Cycle Analyst
Controller usb hookup (mainly to change the amp limit)
-Also am considering making the motor delta/wye switchable
The Hobbyking VT monitor is great. It provides readings and an alarm for low voltage and high temperature, in this case my motor. I wrote a review (at a great ebike forum) -
http://endless-sphere.com/forums/vie...17958&p=262221
I got my controller from
this guy on ebay. His name is Keywin and he is very helpful/knowledgeable and is a pleasure to deal with. His prices are great too. You can send him a message and tell him what you need. Tell him your motor and your voltage for an ebike and he should be able to pick you out a great controller. Let him know what you want for a lvc; I excluded the lvc. I have the 72v/1500w controller. 12fet iirc. He has larger and smaller controllers.
You can email him at
ecrazyman@gmail.com
Keep in mind there are many other places that sell controllers/kits.
minimum you will need motor, controller, throttle, and torque arm(s). About everyone would recommend running 2, especially if you're running 750+w.