OK, try this...
On monday you do 3 sets of 3 on bench press, not to failure but very "hard" sets. Rest 3-5 minutes between sets. For assistance work do 3 sets of shoulder press (of your choice) using 8-10 reps, and 3 sets of skull crushers using 8-10 reps. Take the assistance work to failure or maybe one rep short of failure (whichever you feel best with). Also do 2 sets of forearm curls for 8-10 reps.
Now, on thursday you do bench press 8 sets of 2-3 reps (50% of you max should work well) concentrating on accelerating the bar as fast as possible, don't worry about anything else - as long as the bar goes fast your good. Rest 45-60 seconds between each set and for assistance work do 3 sets of shoulder press at 3-5 reps and 3 sets of skull crushers at 3-5 reps. Take assistance work one rep short of failure or to failure (whichever you feel best with). Also do two sets of forearm extensions for 8-10 reps.
Your warm-up should be progressive, I recommend this:
Set 1 - 50% working weight, 10 reps, 60 sec rest
Set 2 - 60% working weight, 8 reps, 60 sec rest
Set 3 - 75% working weight, 4 reps, 2 min rest
Set 4 - 85% working weight, 2 reps, 3 min rest
Set 5 - 90% working weight, 1 rep, 3 min rest
Continue training all of your other parts as you are now (assuming they are progressing nicely), and eat a lot of food. Make sure to get at least 8 hours of sleep every night, too.