Hey guys i was just looking at the quality of my clips compared to a lot of yours and the quality of my clips is much worse, so im lookin for some advice on how to get great quality.

So here's the situation:
I have the S3 filmer pack and I am now recording clips in high resolution
I use iMovie '09 to edit the footage (When making a new project I choose to "Optimize" the video for "Full - Original Size"
I convert the clips from .flv format to .mov format using either http://www.mediaconverter.org/ or http://www.youconvertit.com/ConvertFiles.aspx

Here's an example of one of my recent clips:
http://www.youtube.com/watch?v=a7e0MiSBzBE

And here's another S3 vid to compare it to that has good quality in my opinion:
http://www.youtube.com/watch?v=VaEvXPXjpqU

Anyone have any ideas for how i could improve the quality? Thanks