WoW Guide: Leveling gear

Jason writes in about WoW leveling gear for the playtime-challenged:Hello,As a casual WoW player, I find myself completely overwhelmed when it comes to getting gear for my Paladin. I keep hearing about greens, blues, purples...how certain equipment can get you laughed out of guilds. I'm level 55 and have never gone on a raid, and honestly never intend to. How can the average casual gamer know