m2v/aiff to FLV

[btmdan]

I need some recommendations. I need to end up with some high quality FLVs to serve up on a web-site. I am being provided with m2v and aiff files for each video. These, I am told, are files that come from Final Cut.

I am on a MAC running parallels.
I have the following software at my disposal:

Flash CS3 PRO (Mac)
On2 Flix Pro (Mac)

Imtoo DVD ripper (XP in parallels)
and a bewildering array of open source video tools running on XP in parallels most of which I grabbed from this site and most of which I have no idea how to use

I guess my issue is that I want to end up with the best quality FLV I can (target bitrate 512 or higher), but trying to figure out the best process has been really confusing. There just seemed to be so many variables and steps that after googling "m2v to flv conversion" my eyes begin to blur and my brain turns to mush.

Im just a php/flash developer who gets stuck with all the video stuff cause I know flash fairly well, so please be gentle.

First off I have no idea how to combine the video(m2v) and audio (aiff) files into one video file, other than make a dvd, and then convert to an FLV. Do I even need to do that step?

I suppose I could request that individual providing me with the source files just give me a DVD. I would then be in more familiar territory (DVD -> avi -> FLV), but I honestly do not know if this is the best way to go.

Any Recommendations will be greatly appreciated

[aedipuss]

i'd check to see if flash cs3 will accept them as inputs as is. wouldn't surprise me if it will on a mac, as aiff is a normal audio format. if it does just convert to flv.

if not.

check the details of the input video and audio with mediainfo or gspot. they may be easily joined into a dvd spec mpg. aiff is easily converted to wav which is an acceptable dvd audio format, but it could be 2 channel or 6 channel and it would make a small difference. once you have a dvd m2v and wav, mux them together and you will have an mpeg-2 you can use to convert to flv.