Here's a good place to start looking
That links you to the last page of the optimal gear set discussion with some of the more up-to-date gearsets posted. The amount of gear sets you want is entirely dependant on just how effectively you want to play WHM.
A quick cursarary glance at your gearsets shows me there is nothing that needs dramatic improvement in your Cure potency set. For your bar-set, I imagine your AF3+2 body is upgraded since you have it in your cure set (I also imagine your AF3 feet are upgraded to +2 as well). Get those AF2 pants upgraded to +2 would be the biggest benefit to your set. This will also double as a great enhancing piece for your Boost sets as well.
In terms of your idle, Diabolique above hit it in the head. You don't really need MP in your idle set as you'll most likely lose it all as soon as you swap out to other pieces of gear. I personally use a Idle + -Damage Taken hybrid set with a seperate macro for a full Idle set. The only recommendation I can add with the above post is to use a Refresh Moondshade Earring if you haven't gotten a Moonshade earring yet and are interested in being a career mage.