With the addition of Omen of Clarity scaling off our auto-attacks, I thought I'd link a couple of numbers to watch out for.
@ Level 80 We will want to aim @ 295~296 hit rating in order to maximize the amount of these procs that can happen. The addition of haste may also increase the amount of procs; but as we all know, attacking every second, haste doesn't benefit us all that much.
The agility to critical strike chance ratio has been nerfed substantially. Several theory crafters over at EJ have said that it is best to attain a certain level of crit % chance, then to pursue pure strength to maximize our melee strength.