MGPB does milling, (i think) if not he has come really nice (at least to me) cnc codes for it
DC mills, and they are about to be putting out excals soon,
tarantula also does milling, but from what ive heard he is an absulote pain in the neck to get ahold of
careful with the phrase "milling on a budget"
you enter the good, cheap and fast trifecta
good and fast isnt cheap
fast and cheap isnt good
cheap and good isnt fast