Contracts for Managing Talent?

[Mecha]

Hey guys I'm looking for any help, advice, info, experiences, anything that can help me out with this.

I'm starting to develop management for artists and I don't want to just give them a flimsy, general half page contract (it's amazing what little can go into a contract). I want to have a reliable and secure contract with them. But I'm stuck!

Does anyone here have any experience with that sort of thing, maybe they can point me at some good avenues for writing good contracts? Anything would be appreciated