Here's something that has been bothering me lately:
Right now many cats are using Death's Verdict (either ilvl 245 or 258) + Mjolnir Runestone, with enough Arp gems to reach the cap with a trinket proc and Agi gems in the remaining sockets.
Now, what happens when you get Deathbringer's Will (http://www.wowhead.com/?item=50362)? Am I correct in assuming that we should immediately replace Mjolnir with it, regardless of our other gear? The raw power of DW should make up for the lack of a more reliable Arp proc, right?
But how should we gem afterwards? Solely Arp gems to get the passive rating as high as possible? Or just enough Arp rating (800) to reach the softcap for those occasions you happen to get the arp proc from DW?
Later, when more gear becomes available, people will go for the hard cap, but what to do until that becomes a realistic goal?