What is the best overall combination for wide lenses and filters for the GS400, as well as battery packs??
i know i've seen a list of Wide lenses and filters here b4, but i was hoping for a definitive list of them
can anyone help??

Here are some previous discussions (http://www.dvinfo.net/conf/search.php?s=&action=showresults&searchid=399507&sortby=lastpost&sortorder=descending) on wide angle lenses. This search link may not last long until it is reset by the forum software. To recreate it, just do a forum search on "wide angle lenses."

One caution, lenses that work with the DV953 may or may not vignette on the GS400. For example, my Ambico .5x 46mm wide angle vignettes slightly in video and in still mode on the GS400 while my Kodak .65x 43mm wide angle doesn't. The field of view on the GS400 is wider than the 953 so it isn't guaranteed that lenses that work with it will also work on the GS400.