I knew there was a good reasong to be looking into a BGE purchase! Happy Birthday!
Anything low and slow or smoked, you will want to use the plate setter. It is by far the most used Eggsessory I have.
If you are using the Egg nest with wheels, be very careful when moving it around. It is not a wide base, and the wheels are small. Any cracks or rocks that you run over could tip it.
There are also a lot of opinions on the "best" charcoal to use. Definitely go with natural lump charcoal only (no briquettes!). Depending on where in the country you are, there are many options. It seems for an economy fuel, any made by Royal Oak (packaged under many store brand names, or just Royal Oak) and Cowboy seem to be fairly poplular. The BGE brand stuff is good, but expensive. http://www.nakedwhiz.com/lumpindexpage.htm?bag
This is a good site with reviews on more brands of charcoal than you will most likely see in your lifetime.
Have fun with your new toy.