enie,
One has to hesitate adding anything to that pharmacopeia of yours. You really have all the angina basis covered with a beta-blocker, diuretic, calcium channel blocker, and nitrate...there isn't anything else.
IF I were in your heavy boots, I might consider a trial wiht 40 mg./day nadolol as a replacement for the atenolol. It is a more potent beta-blocker.
I think it's beta-blockade that you must concentrate on. It might fight the albuterol though becasue it is non-selective...but I'd try anyway.
When you say "constant angina," do you mean even sitting quietly in front of the tube?
God I hope they get that offending artery once and for all this time...maybe the pravachol will help keep it open?