What are some good exercises to improve the size and shape of my pecs? I don't want to get HUGE, just make them bigger. I can feel that they are big right now, but I want them bigger or rounder, lol, I don't know how to explain it. I don't have an extensive set of weights in my basement, just the basic stuff. I do work out with weights every other day, each session contains a huge variety of exercises that cover my whole body.

For my pecs, I do 40-50 pushups each weight session, as well as 40-50 bench presses (75 pounds lifting), flies with a dumbell, and a tons of ab exercises. I was just wondering if there were any other useful exercises that will provide me with bigger and improved results for my pecs. Thanks.

Flat and incline barbell/dumbell presses are the best exercises for your chest. To make them "bigger" you are going to have to continually lift heavier and heavier weight. You only need to train them once a week if you train them with the proper intensity and weight.