Replying to Help: need a wide angle lens for JVC Everio video camera

Hey, tried searching forums and found nothing. I have a cheap ass JVC Everio GZ MG330 with a 30.5mm filter thread ( http://reviews.cnet.com/digital-camcorders/jvc-everio-gz-mg330/4505-6500_7-32858008.html ), and want to do some basic ski filming.

I think a mild wide angle lens is common but I can't find examples online. The lens found are .65 to .18, It seems like maybe .5 is pretty common? Is this relatively mild? Anyone have any links to a good online retailer? Anyone have any examples of shots from different wide angle lens?

Also, to add a UV filter would I get a 30.5mm filter and add the lens on to the filter OR get a 46mm filter and add it on to the lens? Anyone have any opinions on lens hoods using a .5 wide angle lens?

Cheers y'all.