What kinda budget do you have for them? I can give you recommendations from $20 each to $200 each.

Oh, and by the way, the Duncan Invader is a high-output pickup, not a low-output one.

EDIT: I just double-checked my last statement by going to the Seymour Duncan site. Here's a quote from their description of the Invader:

Designed for the heaviest tones a passive pickup can produce.