Play video clips with lightbox effect or in pop-up window?

I want to have links from video stills or jpegs in my sidebar (like nextgen gallery) that when clicked will open a video clip in a lightbox effect – overlaying the site. This will provide fast easy access to my video. I host my own clips, so I am not embedding youtube.
Does anyone know of a plugin for this or something similar. I would also consider opening a pop-up window sized for the video – say, 640 x 360 px.
Thanks everyone.