I had seriously been looking at the dual 3w setup these guys sell for a couple weeks, but always wished they had a dual 5W option. Well, now, (two days after I gave up and just ordered a jet blast), they have a free upgrade to 5W, along with a couple other deals. Still pretty pricey, but just thought I'd throw it out there for anyone looking for a headlight. Not sure how these would fare for mountain biking, but from what I understand they are great for commuting.