This, with both the lens and setup suggestions.
The 11-16 is a great sharp lens for follow cams and any other wide angle stuff. Your 18-200 will get the job done for everything else. Granted, it's probably really cheap glass, but you won't know the difference if you are just starting out.
As far as settings go, try to keep your ISO as low as possible with your aperture around the 5.6-11 range. Incorrect white balance looks terrible and is a bitch to correct, so make sure you set it for the conditions. Also, PLEASE make sure you have some kind of filming rig. Even just a little handle will work wonders.
Never erase unwanted clips from the camera. Honestly I'm not sure why, but it backs up your memory card and you will get the "movie recording has stopped automatically" message. Format your card before filming with a low level format, but make sure you get all your footage saved somewhere (computer, hard drive, whatever) before formatting, as it deletes everything.
Just a few basic tips. Hope it helps