If a cragging fall is your concern, then the so-called softshell is the way to go. I have a BD Tracer for cragging and can honestly say I don't even notice it on while climbing.
One thing to note when selecting a helmet is the difference between CE and UIAA certification. Both organizations test the same, but their standards differ, with the UIAA being the more stringent. It's been a few years since I examined a range of helmets, but back in 2004 or so, there were at least a few Euro helmets on the market that didn't sport UIAA cert. Both the Tracer and the Meteor III pass UIAA.
It's also interesting to note that they haven't yet mandated a test for impact in a fall. They test vertical and perimeter impact with a 5kg weight, measuring the force transmitted, but that really doesn't equate at all.
In all the years I've been climbing with my father, he's only ever climbed one route sans lid. He's been cragging for over 45 years and is the coolest climber I know. If he sees the sense in wearing a helmet, everyone should -- 'nuff said.