--the way those alarming commercials try to tie high cholesterol levels to heart dsease is a great oversimplification. High LDL levels alone do not seem to have a major coorelation with myocardial events, whereas high levels in conjunction with high homcysteine and C-reactive protein levels do. The other part of the puzzle seems to be inflammation:

http://www.webmd.com/heart-disease/g...in-crp-testing

Of course, I know you've had various inflammation issues over the years, but how are those levels currently? You may, as cycelops says, be able to lower your levels enough with merely diet, exercise, and some supplementation to "live on the cusp".