I have roller furling on my jib. I bought Harken RF swivel & drum. I made forestay & halyard/block thing myself.
It works really well, except I had to "reverse" the furling direction to make jib furl nicely around the zipper, compared to natural direction the drum seemd to be set up for.
Luff tension is still my problem, I'm going to make a 3:1 tensioner at end of halyard, just haven't rigged it yet, I'v beed racing uni this spring.
I had my sailmaker make "furling battens" for me, now the sail furls nice & cleanly, with no ugly little battens poking out higher up.
I also had him build a "snorkel" device to protect the jib, which I can leave on the boat, furled.

You might wnat to check out Patrick Ragen, he has 5.5 with furling jib, and helped me out a few times with ideas.
http://mywebpages.comcast.net/ragenpl/nacra/nacra.htm

also check this old thread
http://www.catsailor.com/forums/sho...sts&Main=194&Search=true#Post205