I don't know the specific camera/lens combination yuo're looking at, but I bought the D90/18-105mm kit and really regretted it. I totally wish I'd saved a few quid by not getting the kit lens, and spent more on a decent zoom. The only saving grace of the whole transaction was that someone persuaded me to get the 50mm/f1.8 as a "treat" to myself, and it hasn't been off my camera since.
IMveryHO, kit lens is a completely false economy.