Buy all the old-time genre CD's you can afford and a few basic frailing/clawhammer books. The Bible is by John Burke, an old Oak Publication. Just get a of couple books, however. They get very redundant as this is not rocket science. Then get two banjos. An open-back and a resonator. Mid-grade banjos sound as good as the most expensive, let the buffoons cry foul, this is a fact. Always think of making your banjo wish it was a fiddle. All the rest of the stuff is up to you. Work on dynamics and intonation as you progress, and listen to all sorts of acoustic music from all over the world. There are lots of similar instruments in other cultures which will give you endless inspiration. Trust me and avoid the "technocrats", we all have different types of hands and ears! The type of sound you want to make will emerge with time.