Jus wondering if anyone knows where i can download a good mpeg 4 converter (convert to mpeg 4) with at least 640 x 480 resolution. Im hoping to find a free converter. Thanks.

Try this Jodix - Freeware converts DVD AVI MPEG WMV RM to MP3 or iPod Video
I havn't used it because I use PocketDivXEncoder 0.3.60 to convert files to play on my Archos AV700 player. It was a free download but the latest version is not. PocketDivXEncoder has more ways to edit the output

I use commercial one. If you only need free one. Google is the best tool for us who need help.

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I used commercial software, too. link
Because I think the quality could be guaranteed.
If you stick to free one, try super from erightsoft
eRightSoft