Heal-over-time and damage-over-time ticks should now behave as intended in Cataclysm when refreshed. Developers’ notes: Previously, refreshing a DoT just before it finished its last tick could cause it to miss out on a tick. That was the correct behavior in Wrath of the Lich King, but...
Herbalism has a small, but nice, heal and with 4.0 that heal hastes you. Skining adds a bit to crit rating At top level most professions have certain self-only items that add 80 points or so to your best stat (Agility.) Alchemy can make a number of useful chemicals to consume when...
but I’m just pointing that out because it’s important. When pet’s get focused, they often get slowed as well, which makes it that much harder to get a heal off if they’re too far away.