For that price range the generally suggest choice is something from the Video Deluxe line by
Magix, as the software is consumer level and affordable, but offers all the tools you'll need for most Avatar Music Video needs.
Either way, the best thing to do is to first download various free trials and see what software you like best. If you want to stay consumer level,
Adobe has Adobe Premiere Elements as well, but I personally find it to be pretty limited, so I'd still pick Magix over it, in the 100 usd price zone.