I have a set of bar ends mounted near the center portion of my straight bars, so that the inward-curving ends just about meet. They have a fairly long curved portion: http://www.performancebike.com/bikes...40_-1___000000

and are wrapped in padded handlebar tape. They're angled upwards enough that handlebar-mounted lights I have don't experience interference. I do get a more relaxed, areo position than with the standard grips and bar ends I already had on there.