Pick a press (incline or decline or flat) use a barbell and train it progressively in the 4-6 rep range. Add in a backoff set of 8-12 at the end. For assistance pick a dumbell variant (incline, flat, or decline) and do 3-4 sets of 12-15 reps. Other assistance should revolve around getting the press up (dips, close-grip pressing, etc etc).
So....a sample Monday would be
Flat Bench (5x5, add weight each set, then 1 backoff set of 8)
Dips (5x5, add weight each set)
Incline D-Bells (3x12)
Then a good sample Thurs would be
Flat Bench (5-5-5-5-3 (triple with 5lbs more than Mon's top set, use this weight for 5 on Mon, then 2 backoff sets of 8 with a CLOSE-GRIP)
Push Press (5x5, add weight each set)
Flat D-Bells (3x12)
*Don't screw it up, be realistic with the weights, don't miss weight and rely on a spotter to perform your reps, eat a lot, and you'll like the results.