Anyways, I promised you a WoW entry pt. 2 with more focus on instances and PvE.
Basically, PvE/raiding is the 3rd part of the game. We have 2 other parts, PvP and Questing. (Mind the random order of the 3). In the current retail version of World of Warcraft, you can do 5-man dungeons, 10-man or 25-man raid instances. An example of an instance is the 10-man raid version of Naxxramas, where you have to kill alot of bosses, finishing off with Kel'Zhuad.
You basically want 2 tanks, a main and an off - 3 healers (in some fights 2, in some others 4, it depends on player setup and skill level, not to forget about the bossfight). The rest will ofcourse be a mixture of ranged, caster and melee DPS classes.
Personally, I recently started playing World of Warcraft again, but at the moment I am just currently leveling. I plan to raid Vanilla (lvl 60, first version of WoW) for fun, nothing serious in my mind at the moment.
I have always played a rogue, but this time I made a Night Elf hunter. I'm not really happy with the class itself so far, but I hope things will change as I gain more levels with time.
And the finish, I'm not sure what I should write about next time, maybe some tweak up tips for your computers!