I LOVE my herpstat (I have a herpstat 2).

As for what morphs to get, I would buy 2-3 females and save your 4th slot for a 2-4 gene male in the future. Let your girls grow up and buy a boy in a couple of years!

I would buy some basic female morphs like pinstripe, mojave, enchi, spider, lesser/butter, or even a pastel. Once you have your females, think about what you want to produce and then look for a 2-4 gene male that compliments your girls.