I personally wouldn't use a pure flat bench, as I bench with an arch and still have issues keeping that perfect. Other than practicing technique, I don't see why it would be a good exercise for ME.
Those all look like good exercises to hit on ME. Here's a little read from WS. http://www.westside-barbell.com/articles/bench-workouts/
Do check out the WS article going now, StormTheBeach is schooling us noobs on everything, great shit.