Check out the SAGE system.

http://www.cardplayer.com/magazine/article/15250

Basically it assigns point values to the hand you are dealt, and you either shove/don't shove based on the lowest stack's (which could be you OR the opp) chipcount to the blinds ratio and the points you hold. It seems to work well for me when the blinds have gotten huge and there is no more maneuverability for mind games.. What do you guys think? Have you seen it before? It only applies when the lowest stack is 7xBB or less.