3)- Normal grid level. You will want to look into ways to raise and lower your grid and use multiple cooking levels. 2 best places are:
www.ceramicgrillstore.com (adjustable rig- my set up.) and
www.ceramicgrillworks.com (2 tier swing rack). both great guys and great products to get the most out of your egg.
What he said. CGS will help you spend your savings wisely :-D Unless you plan to cook a lot of burgers or steaks at once, you can get the cast iron grate for the small BGE, put it on the "spider" from CGS and cook very close to the coals so that you do not have to build a monster fire for searing. The 13" pizza stone on the spider makes an excellent heat deflector... Consider the "Customer Combo" from CGS... has the basic Adjustable Rig, spider and more.
You'll quickly learn that (if you're cooking indirect... with the platesetter or spider & stone) that the hottest part of the Egg is the highest... Of course, things are reversed if you're cooking directly over the coals.
You'll also learn that, if you overshoot your target temperature, the Egg takes a LONG time to cool back down. Start closing the lower vent when you get within 50° of your target temp. Use the lower vent for major temp. adjustments. Fine tune with the "daisy wheel" I often leave the daisy wheel (Dual Function Metal Top... in Egg vocabulary) off completely unless I am cooking less than 275°