03 Sep 2009 at 19:58 - 9
Good, you actually check background to know what your doing, this makes it a whole lot easier on all of us!
If you can start the game in Proph. Go N/Me, this is a devastating combination in pve, it is good to note that unless you have a good idea how to play the game, this can be hard on a new player, but you seem smart, so I assume you'll do fine.
Things to look at would be the wiki guides to your class. Just look up necromancer or mesmer on wiki. I'd suggest you stick to necro primary though.
Early on experiment with your different skills, and see which branch you'd like to focus on, later in the game, it is very easy to switch between multiple roles. I'd start off with curses, but death magic is easier to work for a new player.
Eventually, if you read the guide, you'll see which attributes are best for which roles.