How do I place an arrow pointing to something in the video? With still photographs, I use Photoshop. However, I have no clue how to do this in a video clip. Do I need to get some sort of plug-in?
Thanks,

Just find a pic of an arrow u like in google images
Drop in photoshop, remove background ( if there is one)
Save as png
Animate and size it in Vegas
Done
:)

Norris, you do it the exact same way as you do with stills. If the video is moving around, you'll have to go into Pan/Crop and use keyframes to keep the arrow where you want it to be.
BTW, there are a lot of arrows in the Wingdings font which you can load (and resize as needed) right into the Vegas text generator.

edit: Gerald beat me to it :)