i have edited footage with a sign on the wall i need to take out. now im a photosop pro and would just use the clone tool for example but i have NO clue how to due this in final cut or with another program on my mac. help!
Guy Cochran's suggestion will totally work, as long as it is a static shot. I used the same method to get rid of an annoying rainbow doodle in the background of an interview we shot. I would suggest you make your patch a bit larger than necessary and once you import it into your timeline and position it, apply the soft edges filter to it to help it blend a bit better. Should look great.
Forgot to mention, that the reason to keep the Base Layer is to keep the Frame Size the Same eg 720x480 pixels- do not Crop the image in ps and change the size otherwise you'll have a hard time lining it back up in FCP
So in Photoshop "Duplicate Layer"
Then turn the eyeball off on the base layer (should be labeled Background)
This will keep the frame size the same and everything will line up perfectly in FCP.