One thing that may be important to note is that if you're coming back and you're ilvl 210 you will see a significant difference in your damage output due to the changes, HOWEVER it will return in roughly 10 ilvls and increase from there. At least from warrior (haven't really tested with the other 2 jobs but I'm sure someone else can confirm) I was back to doing the same amount of damage around 220 and at 226 I'm roughly doing 120 dps more (of course, I'm throwing grade Vs on everything I get so your mileage may vary). I only mention this because it was a huge upset for quite a few people (me included) when the change happened, but don't worry, it does get better.