Birthday list

Pizza stone?  Cast iron grid?

Go for a Woo or adjustable rig from Tom at the Ceramic Grill Store. The gift that gives every time you cook on the Egg.

I concur with @SGH consider the Woo. It would be my #1 choice given what you have shared. A pair of welder gloves would be a nice companion purchase to the Woo. The plate setter was part of my LG package and I use it frequently for five years but I egged without the ability to easily and safely remove it while cooking. Full disclosure - I purchased an AR this spring.  You  might also consider a grill basket. I use mine for vegetables, strips of meat, meatloaf, meatballs etc.  I also purchased a Kick Ash Basket and love the convenience of tapping away the ash between cooks. My recommendation would be to think about what you like to eat-cook and then add assessories to enhance your experience. It's very easy to fall into the "gadget syndrome " and purchase equipment you don't need or will never use.  

I love my thermapen. 

Go  to ceramicgrillstore.com for firsthand information regarding the woo and other aftermarket assessories.   It's a very user friendly site with excellent support. Their customer service is excellent. 

Weed Torch - $25

Visit the ceramic grill store.  While their web site takes a bit to navigate this link should steer you in the right direction.  http://shop.ceramicgrillstore.com/large-woo-rings/  Look for the PSWoo2 combo. It is a PSWoo2 (enables you to use your platesetter) with a second grid level well into the dome.  I have this set-up (after fumbling around in the darkness for years with other gear) and it's top-notch.  FWIW-

Thermapen is a must have if you don't have one already.  Looflighter is another good choice...