I've only dabbled in terrestrials so far, and typically only new worlds on the "easy" list (curly hairs, golden knees, etc). When do you know you're ready for the jump into intermediate or more "dangerous" tarantulas? I eventually want ornamental breeds, but after reading an entire thread about old world bites (YIKES) I'm a little hesitant. There's also the increase in care- how specific temperatures and humidity need to be maintained. How do you go about taking care of finicky and more fragile breeds?