Saving movie in avi from iMovie

[ardothewan]

Ok I have a muxed mpeg from my digital camera about 30 secs in length. I used mpegstreamclip to make it an avi so imovie can use it since the sound is gone using a muxed mpg in imovie. After I edit it and add a title I'd prefer to resave it as an avi (divx). What are the best settings for this or should I save it as something else and use ffmpegx?
Basically last night I tried a bunch of different settings but found that saving it as a 3mb mov file from imovie was better quality than a 20mb avi file.
Essentially I'm wondering what is the best process for taking a muxed mpg, getting it to imovie with sound and exporting it in a format that PC users can use. I guess I can just go with mov since PC users these days mostly have Quicktime but I'm wondering if there is any better way with avi's.
My specs: iMac G5 1.8ghz 768mb RAM

edit: Also what codec should I use from mpegstreamclip and other steps along the way? I'm trying to get the best quaility that will work on PC's that isn't a huge file. 30 second clip want to try to keep it less than 10mb preferably 5mb or less

thanks!!

[Frobozz]

I think you want DivX. If you can wait a few more weeks you'll be able to do use Toast 7 to transcode video to DivX at various qualities and to, DV, DV 16:9, HDV 720p, HDV 1080i, QuickTime Movie, MPEG 4, H264 and 3G. Toast 7 also will create and burn DivX CDs and DVDs and can read unfinalized VR-mode MPEGs from standalone DVD recorders and MPEG camcorders. I've been Beta testing Toast 7 and the most recent beta is working perfectly for me. This Swiss Army Knife has added lots of new blades. Roxio tells me they plan to release it the end of August.