I know most are only starting to get into photography, but the Tamron 18-250mm lens is on sale for decent prices:
Tamron 18-250mm F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Lens for Nikon Mount : $269.00
Tamron AF 18-250mm F/3.5-6.3 Di-II LD Aspherical (IF) Macro Zoom for Canon Mount: $329.00
The lens is not too bad. It does not have Vibration Reduction, but microstock is *usually* performed in a controlled environment, such as a studio.
This may also make a great walk around lens, depending on where you plan to go. Check them out, you may like what you see!