Hi Trinton5,
Progressive is the most important recording format to choose (interlacing looks terrible on the web and on LCDs. If it were me, I would also shoot in HD. HD down converts very well and will give you better looking SD / web resolutions, plus HD titles, even when down converted, look much better than SD titles.
One more factor, you can save 20% on your file size just by shooting in 24pn in stead of 30p. This is really, really handy for the web - it leaves more head room in your file size for quality.
I think I may go with the 720p24PN setting as suggested, just an additional querie, would you down convert through compressor or output through quicktime conversion?