Thank you all for the advice so far. It's nice to know that the little lurking I've done so far has at least lead me to passable first choices. I'll probably be trying to pick up the two boxes, Slop Hauler and extra Gremlins sometime in the next couple of months to try get a feel for the faction and then see if I can figure out the way to go from there. Or just come back here and ask all you nice people for some opinions again.
And, actually, I felt a little bad about the "comic relief faction" part. Whether true or not I'm grateful I was able to look past that and find a host of models I was actually interested in. What originally led me to the Gremlins was actually the pullmyfinger article on Ulix. Reading it felt a little ridiculous; it made me laugh but, at the same time, it really made me interested in looking up what the rest of the Gremlins had to offer. Som'er had me skeptical at first but I figured he and Ophelia might be a nice place to start. Plus, Zoraida, Wong, Mah and The Brewmaster all also seem very interesting so I figured that no matter how I expand I'm not likely to be disappointed by Gremlins.
edit: Piglets, too. I'll probably be picking up Piglets, too. I mean, how can I say no to that?