Those Shimano bar end shifters are spiff-o. I have a couple of sets, an 8-speed Ultegra that's currently on my Univega hybrid with albatross swept bars, and a 10-speed Dura Ace set cannibalized off a dead time trial bike, waiting for another project.
I'm tempted to put the 10 speed DA set on a go-fast road bike, but I'll probably need to trim the handlebar ends to avoid knocking my knees against the shifters. I already have a problem with my knee knocking my bar-end mirror when I stand to stomp the pedals.
I avoided bar-end shifters for years, thinking they shifted sluggishly or were imprecise, but I'd only tried some that weren't properly maintained and adjusted. Several local friends use 'em on their touring rigs and love 'em, so that persuaded me to try a set. They're great, and much more affordable than new brifters.