Cheap or expensive does not really matter in the long run.
The resulting video will depend entirely on your story telling and editing skills.
A good editor can turn out masterpieces on a cellphone, a poor editor can make a mess of any footage on Media Composer, Adobe Premiere or Final Cut.
Regards
Douglas
PS. After you decide on the software, expect having to spend a lot of time getting to grips with editing.
Good luck.
