Hey Hernan, Working with video is certainly more complicated then still images (unsurprisingly!) and like working with stills you end up developing your own personal workflow. It was mostly trial and error in my case (still is!!!). There is no set “system” as I see it. I guess I have kind of developed my own however, which I am happy to share….
I use FCP, and mix stills and video. My video is from an HVX 200 which uses P2 cards, which are kind of like big CF cards for video. Video is imported straight in then edited. I import stills as jegs at 2000px wide (a little bigger than needed, but bigger is better than too small!). My audio recorder produces WAV files. I generally convert audio to MP3 in compression to save on file size.
Once I have completed my work I export as “Quicktime Movie”. This yields a full size master file of my project. I use this to export compressed versions from. I generally use Quicktime Pro ($30) to compress my files as it is very simple to use. I do however have a plug-in for compressing to flv (On2). I have found that you really have to pay for software to get a decent quality flv. The encoder that comes with QTP and Flash is pretty poor.
QTP pro gives you the ability to resize/crop your file and set the amount of compression. H.264 is the way to go as standard, esp. as it produces smaller files now. One problem though is that stuff can appear washed out online and when played on a PC if produced on a mac. I haven’t found an good answer to this one yet (as discussed in the other post).
Ultimately for video you want the best looking files as small as possible so the compression is key. You can adjust the audio settings to mono and drop the bit rate in QTP which really helps with smaller files.
Again i see flv as the way to go as they will play on ANY computer, are small, and you don’t have the gamma/brightness issue.
Hope some of that helps!! :)