I am planning on starting out with some video lighting

One of the things we would like to do is chroma keying. We already have a chroma key set (backdrop and stands) from our still photography.

Of course i would like to be able to use the lights for other things as well as much as possible

I dont mind spending some money but cant spend too much as this is not something i do too often (not yet anyway)

i read through a lot of messages here and looked at a lot of lights including the britek kits as well as lowel kits but am not sure what would be a good start

I am thinking i need some broad lights to evenly light the background and then at least a key as well as a fill and possibly a hair light. In still photography we use something similar (2 background lights in umbrellas to flood the backdrop and a key and fill with softbox as well as a hair/back light).

Any ideas ?

Thanks