To get regular pay programming on C-Band, you need a receiver capable of taking in a VCRS decoder board. These are usually pink, if they are black or blue, then you need a new one. THE receiver out these days is the 4DTV 922, which receives VideoCipherRS analog programming, and DigiCipher2 digital programming (which includes more movie channels then DBS and lots of other stuff) on both C and KU bands. The 4DTV 922 supports DD5.1 with coaxial out, and with the HDD200 decoder module, it can recieve pay and free DC2 HD programming. Most, if not all, of the free HD programming on C/KU band is encoded in DC2. There is nothing on KU that is an analog subscription service, but with KU, you get access to a whole lot more digital DC2 programming. In fact, NPS is selling a 922 receiver for 600 bucks with 1 year of HBO/Cinemax included. This package includes many HBO/Max channels not available on DirecTV and Dish Network. (400 for receiver + 200 i think for HBO/Max). PM me for details. The HDD200 decoder can be found on ebay for cheap or on the internet. The decoder boards can also be found on the internet, too, or from the previous owner.
Now on to FTA. The FTA we all know and love is not in DC2. Rather it is a format known as DVB. DVB is also used by E* with the nagravision encryption technology to provide Dish Network's content delivery. To receive DVB/FTA programming, you need a seperate DVB receiver slaved to your C/KU-Band receiver. The c-band receiver (or 4DTV) moves the dish, while the DVB receiver receives the FTA programming. Some DVB receivers have DD output, and some have AC3 conversion. I myself am in the market for an AC3 decoding receiver so I can recieve G4 TechTV FTA. TechTV has always been analog FTA until a month ago. I was one of its first viewers.
Motors on dishes big and small are powered by the receiver. I have not messed with small KU-only dishes, but I do know that on BUDs that the mover is powered by a series of 3 or 4 wires which make up one of 4 sections of the ribbon cable that all BUD users have grown familiar with. (C-Band RG6, KU-Band RG6, and Polarizer Controls being the other three sections).
FTA is more fun on a BUD than it would be a KU-Only dish. The wealth of programming from the 4DTV 922 and C-Band only addes to the fun of the BUD.
PS. If you find a KTI brand dish, I have for sale a brand new Horizon to Horizon mount that will allow you to point your dish at the entire viewable arc in your area.