Stu,

I find doing huge weights on my triceps really helps my bench pressing. I do 3 warm up sets of 60kg, followed by my 5 really heavy working sets. they start at 120kg-140kg-180kg then 2 sets at 220kg till failure. my tricep excercises are as follows. tricep pull downs. 6 sets. 3 sets at 90kg and 3 sets at 125kg. i then do close grip bench which massively increases normal bench press. 6 sets. 60kg, 80kg, 90kg then 100kg, 125kg then max up to 160kg.

try and work your shoulders and triceps as much as poss as it all helps the bench pressing.

hope this helps