converting down to low size yet maintain good quality

[lawlbear]

hey ive been searching everyone for how to do this, here is a video of the quality i would love to get

http://www.youtube.com/watch?v=PVctzwuRw8M&feature=channel
http://www.youtube.com/watch?v=LyVGSGynYpg

anyways does anyone know if the reason they can get such high quality is because youtube expands there max size amount since there a pretty big gamming community? or are they just doing something perfectly right =P anyways for anyone whos is not aware youtube videos can only be a max of 10 min and 1gig in size though when i convert my video that are about 6 min plus i get like 2 gigs so its not good =P and if i do use other settings the quality is just damm right terrible also im trying to have a aspect ratio of at least 640x480 anyways thnx in advance

(using sony vegas platinum 8)
(and/or camtasia studio 6)

[zoobie]

read some of the other youboob threads here for some tips
of course, it may all be moot

[lawlbear]

yeah i cant find anything at all nothing HD at least lots of HQ


(high def)
(high quality)

[aedipuss]

to get a watch in HD link the video must be 1280x720p or larger. HQ - 720i to 480p.

bitrate should be 5mbps or greater. h264 with aac audio.