I want the change of hand positions to avoid sore arms, which I get after an hour or so on straight bars.Not unless you intend to ride lots of flat fast trails and climbs.
Canecreek Ergo Bar Ends
http://www.amazon.co.uk/dp/B001KS1X...etw=g&hvrand=1234567890&hvpone=&hvptwo=&hvqmt=