http://blue.mmo-champion.com/topic/2...ppm-mechanics/
I found this interesting. Makes me think, that when 5.3 hits, that it'll be more important to upgrade trinkets, than it would, other gear (possibly except for weapons).
If the proc rates scale, with ilvl, and the stats increase as well, then we'll not only get more benefit, but also more often.
At least for enhancement, I'm thinking trinkets > weapons > all other gear. Opinions?