Forget those cheapo lens...There is no comparison...
Buy the camera with the kit lens, it is really worth it. If you need a longer zoom (70-300). The sigma 70-300mm f/4-5.6 APO Zoom Macro Super II will cost you +/- $200 usd and it is an excellent lens in the lower price range.
If you need fast focusing (example: sports) then you need to plan around $1000 usd to get a Sigma 70-200 F2.8HSM($800) + 1.4x converter ($175)or $1500 to get a Nikkor 70-200 VR + Nikon 1.4x converter ($300)