Devinci Dixon RC. A bit of a longer travel bike for xc, but with the adjustable geometry (via hi/lo setting on rear swingarm linkage) you can steepen or slacken the geometry to suit your needs for a particular ride. It comes equppied with hella nice componentry,and mine weighs in at 29lbs and some change. I now have ONE bike to suit my needs rather than an xc bike and longer travel bike. Luvin it!!
http://www.devinci.com/bikes/browse_9#9_31_95