I know you say you'd like a small python (ie. Antaresia) but keep in mind that they're very veeery small when they're babies. I LOVE my spotted python, but he is so delicate as an adult, and as a hatchling he could wrap his entire body around my tiny thumb (I know children with hands the same size as mine). I've also heard from several people who deal with these tiny tigers, and we are all in agreement that they can have a very big case of little snake syndrome, meaning they can be very bitey.
Now, I've just received my second snake (a blackhead python) and his temperament is much sweeter. I'd say it would be best to buy a larger species - a Woma or smaller Morelia species - which will be more relaxed.
Every other snake species I've dealt with has been entirely more handle-able than my spotted python (and the wild spotted python I rehabilitated).
But hey! I love my bitey little sucker a whole bunch - he taught me patience and gentleness, and I cherish the days that he crawls around on me without biting because they feel like a gift. If you think that you'd rather have a smaller snake that bites more often (with smaller teeth and jaw muscles) then I say go full-steam-ahead!