For the Black Widow: You want a deadly spider? Take the Funnel Web. From my knowledge, it's the most deadly spider in Australia and possibly the world. We really hit the jackpot when it comes to poisonous animals.
I knew these would be good as soon as I saw that Dusty wasn't completely shunning the idea, and I must say that he has very good taste.
as for the naming, i agree with dusty's suggestion. Sanke names would be a tad more appropriate, and the ones he mentioned are indeed the biggies here.
as for the ships... OH YEAH !