I know Woz has a thread similar to this, but since he deals mostly with AE templates, most of the awesome (but free) Vegas templates have been left out.
These templates are Royalty-free, but some template creator requires you to credit them in the video description. That being said, here are the templates. Some are as long as 40 seconds, but most are in the 10-sec range. Requests are open, but I would rather take it slow. Text (duh), font, and font color are editable. Background music can be replaced on some templates. If you are not too sure, feel free to ask.
EEHHH? 18 Videos?
A few featured videos: