Tsyr said:
Personaly, I suggest the Cleric Quintet, also by Salvatore... It's a much-under-rated series of his, also availibile in collected volumes.
I'll second this suggestion. Pikel Bouldershoulder is the coolest dwarf ever.
Anyways, here are my D&D novel recommendations for the starter of this thread:
The Icewind Dale Trilogy: Lots of adventure, excitement, and a cast of enjoyable characters as well. This is pretty much the architypical D&D novel. It features a dwarf, halfling, elf (dark elf, anyway), and a human going on exciting adventures and battling things like dragons, evil wizards, and assassins. It will never be considered good literature by guys who wear tweed blazers and smoke pipes, but it's fun to read and that's good enough for me.
The Cleric Quintet: As stated above, this is RAS's "forgotten" novel series, mainly because it dosen't have Drizzt in it. Despite this, it really is a good series with likable characters. Many people view clerics in D&D as little more than walking first-aid kits, but after reading this novel, I saw that they can be just as interesting as any other class.
The Dark Elf Trilogy: This series is probably generated more interest in the drow than any other product (this could be a good thing or a bad thing depending on where you stand). It also generated a complex and intriguing society for the dark elves. This book trilogy is a little darker and more adult than most of Salvatore's other books, but I still think it would be safe reading for most well-adjusted 12-year-olds.