Okay, now it's time to throw in a twist.
I went by the proshop today and talked to our resident pro... the first thing he said when I started explaining what I was looking for was "Let me say one thing right off the bat, all these balls are the same." (referring to everything in the shop). The point he was making was that although each of the balls has a different potential, 90% of what the ball does is attributed to the bowler and how the ball is set up.
As luck would have it, he had just gotten in a shipment of Hammer balls (I guess they stock more than I thought), and had both a Blue Vibe and a Pain in the back room. He also has a Doom on order which should be received in a couple of days. His opinion was that I should get a ball that will grow with me, rather than getting a ball I would outgrow in a few months, and thus he recommended either a Doom or Pain in the class of ball i was looking for. He then said he could tailor the ball as the need arises, though he recommended a maximum flare drill and the stock rough polish to start, then we could try different polishes to add length if needed.
He quoted me about $120 for either the Doom or Pain with drilling, thumb slug, etc., which sounds pretty good to me considering they're about $100 online... so I think that's the direction I'm leaning now.
I will say that the Vibe felt really nice, and you can definitely feel the difference between that ball and the Pain as far as cover construction. The Vibe was a very shiny polish, and the Pain was a very rough matte finish (almost 'sticky' feeling).
Thanks again to all of you for your input.