Now that you are strength training you can start targeting certain body parts.
Targeting the upper chest and shoulders will compliment the work you do for your back, biceps and triceps. The barbell chest press is a great movement for the upper body. Men love this exercise, but usually it is with a flat bench and very heavy weights to build a strong massive chest. Women can also do the flat bench press for overall strength development but target more of the upper chest muscles with the incline bench chest press.
By performing the incline bench chest press you are using more of the muscles just under your collar bone which will help create a stronger, more defined chest.
Start out by first getting used to doing push ups before you actually start using the barbells. Body conditioning exercises always helps strengthen the joints to prepare for more intense work with the free weight.
Below is a demonstration of the incline e-z bar incline press with 55 pounds for 12 reps. This weight is about 35% of her bodyweight. You do not want to overload the joints to much, take your time and progress slowly.