"It depends."
If in San Francisco / Bay Area / LA / NY, look to pay low-to-mid $100K range for both, if you want someone with real experience (which, for a game, you really, really do).
Salaries can go way down in other areas, but finding experienced people is tougher.
If via outsourcing on elance, you may get people very cheap -- though in almost every case you'll get what you pay for -- and often you'll get rehashed work or assets.
Or if your idea is well-formed, you may be able to get an agency to build the game for you for a fixed price on delivery, often with onshore product leads and offshore resources.
Best,
-David
http://www.doublecoconut.com/