Tamron vs Nikkor (With D90)?

I want a reasonably good all-around lens for a Nikon D90. I will also be buying an 70-200 F2.8 and other more specific use cameras, but I want one for daily use. I want it for both indoor as well as outdoor/scenery type use, at LEAST 18-200mm. Anyone have experience with both of these ... Tamron 18-270mm... show more I want a reasonably good all-around lens for a Nikon D90. I will also be buying an 70-200 F2.8 and other more specific use cameras, but I want one for daily use. I want it for both indoor as well as outdoor/scenery type use, at LEAST 18-200mm.

Anyone have experience with both of these ...

Tamron 18-270mm f/3.5-6.3 Di-II VC LD Asph. Macro Lens for Select Nikon Digital SLR ($600 at B&H)

vs

Nikon 18-200mm f/3.5-5.6G ED-IF AF-S DX VR Autofocus Lens ($700 at B&H)
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