What is the main difference between 18-200mm VR & 70-300mm VR Nikkor lenses?

Also i need a bit of an advise…

I'm planning to buy a D7000 and i'm getting 18-105 VR lens with that… I have asked people and they say its not really much. Also i'm not really the kind who'd change his camera or lens very often… So i'm thinking of not taking that lens and taking a 18-200mm or 70-300mm lens instead… Is it a good decision? Please tell me which one to go for as an 'allrounder kinda' lens…

The nikon shop is really not able to advise me on this.

The difference is their focal length.

The best all round lens out of that lot would be the 18-200mm. I bought my D300 with that lens & its good enough for most stuff, until you get a need for more specialist lenses.

The 70-300mm is going to be a bit restricted in tight spaces as the minimum focal length of 70mm will mean you'd have to back up a fair bit to get everything in & you may not be able to. I certainly wouldn't class it as an 'all rounder' lens.

The 18-200mm will go from wide angle to telephoto, the 70-300mm is midrange to telelephoto.