I like the under-the-bridle furlers.

The Hobie 18 furler, while physically kind of large, has a rebuild kit that will make an old one like new (Hobie #61900900, $33.25). It has an interesting "pass through" chainplate adjuster to tension the rig at the forestay. I've seen several setups with a swivel attached to that plate BELOW that furler so you can use it for a mid-pole support for a spin pole.

Harken now has a smaller "under" model, too (H454).
Harken furler, 454