The Ibis Hakkalugi is a great looking bike. Far too good for my level of CX skills. There was a guy on one at the XC event at Meadowmill - he must have lapped me four or five times. But - hey - maybe it is all about the bike: I was on a borrowed Alu MTB with big fat tyres, he was on a carbon-framed skinny tyred CX thoroughbred - he had it much easier.
However, if I did get a XC-capable bike I'd be best getting something with a bit of light-touring/disc brake capability, so the Hakkalugi's out, really.
Luckily I got my road bike at TBC so, although the Cubes look good, I know I don't need one. And I know very little about MTBing, so wouldn't really know a lust-worthy one were it hanging on TBC's walls right in front of my nose. I'm sure TBC will see to sorting that out in due course though...