Sean, my max bench was actually 345. I'm pretty sure I could have nailed 350 that day too. Nowadays though I can't put up as much weight (e.g. way too much cardio from my job has caused me to drop 20lbs and turn me from a weightlifter to an endurance athlete).
But I digress. The program I saw the MOST results from in terms of increasing my poundages was the Waterbury Method.
It's under Training/Authors/Chad Waterbury/ The Waterbury Method. Hopefully the mod reading this can be nice and provide a link! (Thanks!)