Not unless the OP already has a couple of large CF cards, a bag, a spare battery, whatever filters s/he prefers, etc. In that case you are looking at $1500-1600.

The 18-200 is a good lens, I own it too, but unless the OP knows that s/he needs the 35mm equivalent of a 300mm telephoto then I would at least wait for the upcoming 16-85 to compare.

[1] The 18-200 is a relatively big and heavy lens, [2] I have never gotten used to/ OK with the huge amount of lens creep/slop this expensive lens has, [3] IMHO the 24mm equivalent of the 16 is of much more value as a travel lens than is the 300mm equivalent of the 200, [4] it is likely [though we will have to wait and see] that the 5x 16-85 will have better image quality/fewer optical compromises than the 11x 18-200 [simple physics suggests this might likely be the case], [5] the 16-85 is a smaller and lighter lens yet still has VR-II and finally [6] the 16-85 will cost no more and perhaps even less than the 18-200.

Just a few thoughts.

Cheers.