Trying to advise on the 'best' NLE is a bit like trying to advise you what religion is the best. We all have our own favourites but the best one for you is for you to determine. Most offer trials for download.

I personally use Adobe s/w so would recommend Adobe Premiere Elements which is likely to do all you want it to for a while, including building DVDs with menus.

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I'm not young enough to know everything!