I know of no plug-in, but with features, like the RotoBrush (http://library.creativecow.net/articles/harrington_richard/after-effec ts-cs5-roto/video-tutorial), you might find the bucks.
shooternz, nothing at the moment, but I do a lot of videos with rotoscoping. I guess I'll have to do with using two different programs. I thought premiere would handle all of the low grade effects that I do, but I have a free rotoscoping program that may accidentally lower the quality of the video -_-.
Yes I have lasvideo, and thankyou. But it'll still be hard for me in my teens to pay 240 dollars a year, or 20 dollars a month. And I plan on making videos for the rest of my life, so after the first year, I definetly will not be able to pay 600 dollars a year after that. Thank you though! I am so glad people are trying to help me!