I do like the look of the Schecters - however, I'd have to find one to test-drive somewhere, and the music stores around here (possibly everywhere) don't really carry 7-strings.
Edit: The C7-blackjack looks really sweet - I wouldn't even have to replace the pickups

One question: how is the upper-fret access? It looks like frets 21-24 might be a bit hard to reach over the body...