Does his business have a Mac? If so, Final Cut Studio is about $1,200.00. That would be a good option as you get a great program for relatively little money.
AVID Media Composer is a good video editor for PC (or Mac) but then you're looking in the $3,000+ range. These programs might be overkill for what he's trying to create, but they'll definitely do anything he needs and more.
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