I'm running 28mm Hutchinson Sector tires on Velocity rims. These are not tubeless-specific rims, but my LBS used (obviously) the special rim tape. I love this setup. No problems in 3-4 months, lower pressures (I'm 195 lbs and run 85/90 F/R), much improved ride. I've added additional latex sealer one time as my LBS advice is to add 1 oz/tire monthly during the summer. The tires loose 3-4 psi overnight, but it has always been my habit to pump tires up prior to every ride.

I understand Schwalbe is coming out with a 28mm road tire which may have an even better ride. Bought my spare for $80. This is 2X what I pay for my Conti GP 4 Seasons (from Wiggle), but I'd expect those prices to come down. Even if the tires remain "expensive" the benefit is substantial.

I do a reasonable amount of climbing for an old guy and the descents are steep. One of the advantages of tubeless is the ability to sustain a puncture without a catastrophic deflation.

Regarding instructions: if you're going to convert existing wheels I would have an experienced LBS handle it the first time. I don't believe it's rocket science, but why not spend a few bucks and get it done right the first time?