AdWords Managment - What to charge?

What is fair pricing for AdWords Management?

[Feverpitched]

Hey Guys & Gals,
I'm hoping I can get opinions and suggestions for AdWords management, optimization, etc. for my growing client base.

Setup Fee?
Monthly Service Fee?
Keyword research?
Would/could it depend on the client's monthly budget?

I'd appreciate any feedback and food for thought.

Thanks

[eWhisper]

Here's a few other threads on the subject:

[webmasterworld.com...]
[webmasterworld.com...]
[webmasterworld.com...]

[Feverpitched]

Ah, Thanks! I'll check them out.