Well, Engineers don't make any armor, so you wouldn't have to worry about the mail thing, and from what I've seen their weapon creation is limited to guns of varying power.
Intensity Rising: I'd say you're better off saving your money. World of Warcraft has been fun for me, but I wouldn't buy the full version just to play it for a month. Unless you played it a lot and/or joined a power levelling guild, you wouldn't see much of the later game, and it would probably be better to buy a game that you can play as much as you want for the money you've got.
Now, before anyone runs off on a whiny tangent about how "Eww, you have to buy the game, and then buy it again and again every month", stop and think; For those of us that are getting the game, it's obviously entertaining enough to warrant the monthly fee, and it really isn't that much of a problem if you're running off of more than a weekly allowance.
