Well if you want that v shape, I think a very important part of it besides bench press is working your deltoids. If you bulk them up they'll broaden your shoulders and they wont make your shoulders round but instead more square. As for abs, I work them about 2 or 3 times a weak. I hold a 25 pound weight on my chest and do 2 sets of 21 (7 lower crunches, 7 higher crunches, 7 full sittups.) I also suggest hang clean or power cleans (start with hang clean.) When I first started doing them, I saw several different muscle groups bulk out after a month or so. Oh I also forgot...when you're bored and at your computer, get down on the floor and do pushups until exhaustion. I've grown to love pushups, I just started close grip pushups because my inner chest needs more working.