If you're serious a good mill is pricey, even the table top mills are in the 10k and up range, I'm talking something that will actually hold decent repeatable tolerances. You might be able to find a router, which is similar to the mill with a little less flexibility for less. I have no idea what a small CNC turning center costs. Full scale equipment will run in the 30k and up range (used).
Good Luck!
p.s. You might want to talk to Bryant just for some leads on a setup if nothing else, he's involved in all things CNC as one of the key roles at Sandia Labratory (his day job). I think he is pretty close to you too (Oakley ~ Brentwood area).