I would say 1g/lb of body mass would be a minimum intake level for protein.

I'm also going to say you're overdoing the chest movements. I would pick one main exercise that you're going to hit really hard (perhaps flat DB bench press) and then hit maybe one accessory to that (maybe dips or something) that you do higher volume/less intensity.

I might also reccomend a full body routine 3x a week or a upper/lower split rather that the body part split.

IronWorker