I just got my first two snakes, my second one came today. I was amaed at how many color morphs of black ratsnakes there are. I ended up with a female licorice stick black rat, and a male black rat het. lic stk's (regular looking black ratsnake which carries the genes to reproduce licorice sticks).
Here's Lola, my licorice stick

Here's Frankie, my black rat

They won't grow too large, I've been told they can stay in the 29 gallon that they are living in for the rest of their lives (2 seperate 29 gallon tanks), but i'm in the process of building an elaborate cage (one stacked on another) for the two to live in.
Check out this thread on the classifieds, this is the guy I ordered mine from and I was extremly pleased with his service and the snakes I got...although i'm not saying there aren't a bunch of good breeders out there it's just he's the only one i've ever done business with. He also answered many questions for me, and continues to.
http://market.kingsnake.com/detail.php?cat=60&de=238001
http://market.kingsnake.com/detail.php?cat=60&de=218122
http://market.kingsnake.com/detail.php?cat=60&de=213880
(those are the only three current posts he has that I saw).
Mine are both a little over a year old living in 2 seperate 29 gallon tanks and they seem very content. Let us know how it turns out!
-Chris
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The reason mainstream thought is thought of as a stream is because it's so shallow. -Unknown