Go SLOW! Take your time, and dont burn out and become broke.
Shop around, there are many deals if you learn to not always buy the first card that shows.
Most Important..... Read every single vintage guide, auction catalog, internet post you can, learn all you can.
****Buy Lew Lipsets "Encyclopedia of Baseball Cards" (originally it was a 3 vol. set, but now it has been reprinted in one large book...yellow cover) best buy you will ever do!
http://cgi.ebay.com/Encyclopedia-of-...mZ320288679043
good luck and happy collecting!