Ok youve all been very helpful with your advice thank you all btw my next questions are:
1-What if your shooting video that is say too big for a blue/green background are u able to key it out and drop it into another video?

2-with aftereffects it doesnt give any instructions how to key im using the demo version until i get paid so trying it out first...any help me with that?

3-is there other programs that lets u remove background video and keep foreground video and add it to another video ae looks like its only photos

4-i just realized my jvc grd30us minidv cam does not have a lock record button so if i use a tripod how am i supposed to keep the record on and get in on the video??

5-how can i shoot a small video clip of say the sky moving to timelapse it or so camera doesnt have the feature and i need a clip showing the passing of time and dont wanna spend $60 getting it from a stock film company..?

ok thats it for now i think

Nick, questions need to be posted seperately in the appropriate forums. For example your questions on After Effects need to be placed in the PC or Mac editing forums.