Only one type of light right now. point light that distributes lights in all directions.
You can have a cone created that looks like a spot light cone and use a pure black texture on it and it will block the light, simulating a spot light. But you would need a model program or someone to make the object for you.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit