It's like a sickness, it starts kind of small then it grows stronger and more virulent and then you succumb to the virus, and let it take over for a while until it runs its course. Maybe an unpleasant analogy but when I get into something new craftywise I really GO FOR IT. So I have been carving away for weeks now, it is so much fun, I can't stop. Erasers make good little stamps and whaddyaknow? they have tons of them at the dollar store, where I proceeded to buy all the packages they had hanging up (no picture, lets just say I brought home over 100 erasers). Most of my supply comes from dickblick.com which is great place with great prices.
I got this new book (see above) that has some great patterns and ideas and is really inspiring. You should visit Geninne Zlatkis' blog at www.geninne.com. She is a very inspiring artist and avid rubber stamp carver. Youtube has quite a few how-to videos on carving also. Some of my carvings are a little shakey and far from perfect, but I hope to improve. Another obsession.