No problem! Thanks for all the support guys! I'm going to see if I can find a trial of Adobe Premiere CS4 and if it can handle TS files with finesse (very much unlike Vegas) then I'll start learning it for future videos.
Also, Jesuslegs brings up a great point. I'm not going to go ahead right away and make a long video of a whole level or something like that. People don't like watching long, boring vids. They want to spend a minute or two, five tops if it's really interesting, you know what I mean? So I'm going to try and go more for quantity than length so there's more of a selection instead of just a few long clips of the same thing.
But I think the next thing I'll do is record myself doing my best to make a circle, square, etc. it seems like a good idea and it shouldn't take too long. I'll get started on it right away, so expect some updates soon!

EDIT: Sorry I forgot to mention, somebody had asked about the settings I used for YouTube. That particular file was actually just 1280x720 video compressed in Divx (actually at 9000kbps since it was so short, it only came out to about 30 megs.) You have to make sure you add &fmt=22 onto the end of the video URL though or it wont come out in HD (&fmt=22 forces the highest resolution YouTube has of that video to be streamed, which in some cases is even higher than their "Click to watch in High Quality" link.)