my 2 cents...
okay i've been away from this forum for awhile (though any of you wouldnt know, i use this site for information, most questions i have are answered before i can post, lol)
anywho, this is my routine for chest, bench press only (only an example)
1.Warmup, possibly just the bar, if you know you have bad form and cannot keep the bar steady then do this, this will pump your muscles just enough for you to prepare yourself, once again you shouldnt do any more than 15-20
2.Warmup, 135 x 12, focusing on the muscle is important, if your benching make sure you chest is becoming pumped if not then, widen your grip (unless its all ready correct)
3.Medium weight, 180 x 10, this is where you decide how much your going to lift for you heavy, you should be doing a moderate weight for this set, something you could probably max out at 12-15 reps, up until your max set, you should never really max out.
4.Heavy weight, 225 x 8, this is where the madness starts, this is where you max out, get absolutely every rep you can get out, if you get more than 8 reps then you know to go a lil heavier next time (ie, i did 225 x 10 so i will do 235 next time)
5.Cool down, 115 x 15, i know i know many people dont like this or they think its for pussies, now i only do this because, One - i still have energy left in my chest, Two - my bench has gone up over 100 lbs. doing this, so it works for me. Oh and doing this also helps on cutting down on lactic acid on leg day, different topic though (Sorta.)
Well, thats what i pretty much do when it comes to benching, if it doesnt work try coming up with your own routine, or combining others, and yes 30 reps is too much, even though ive gone over 100 on leg day its a bit much...