I like to do flat bench and then switch to incline dumbells as the core of my chest workout...That is an awesome combination for packing on mass....maybe some weighted dips or fly's towards to end of the workout and you have yourself a killer chest workout.
Mustang is an old hand at this just like myself, go with his advice.
Although a persistant rotator cuff injury prevents me from doing the incline flyes with DB's so I use a smith machine for super strict form.
i personally like to use incline lifts first, upper chest is harder to develop, but looks thick as shit when done right. for mass stick with the basics, im a barbell fan myself, but switch it up once in awhile. both offer their own advantages
I hit every part on my chest days. Flat, Incline, and Decline Bench then dips ine day.........a couple days later Flat, Incline, and Decline Dumbell Presses with the Smith Fly Machine, then a couple days after that..........Flat, Incline, and Decline Dumbell Flys with Cable Crossovers to finish. I use heavy weight for the first two Chest days then concentrated high reps for the Fly days. This works for me! Everyone is different though. Good Luck