If you have a Sony A-Mount camera, these are superb deals. All come with a 2 year warranty. Includes free shipping. Tamron 18-200mm AF F3.5-6.3 XR Di II (Sony A-Mount) Ex-Demo - 2yr Warranty Tamron …
Tamron 18-200mm F/3.5-6.3 III VC Lens for Sony NEX E-Mount for around $540 delivered from Amazon.de. This is the cheapest I've seen it and is at least $150 cheaper than grey imports: