Replacing gear questionFollow

for dps dk
build up hit to approach the cap > str > crit > ap
or something like that

str will do more than AP will, since through talents 1 str gives you more than 2 ap, 1/4 parry rating, and some win :X

stamina is not a main stat for dps.

Order of preference (assuming you're not capped: Hit > Expertise > Str > AP > Crit > else. At least as far as I am aware.

Here is what you don't want: anything with spellpower, intellect or Mp5. It sounds obvious but there are a lot of quest rewards with these on them and I saw DK's wearing them thinking since these were outland quest rewards that they would be better then the gear they picked up in the starter quests. It's not. What I would go for is strength then an equal mix of hit and crit. Burst damage from crit is great and hit lets you pick fights with mobs three or four levels higher than you (and there are plenty of those in Hellfire). One last thing to note, I was still wearing a couple of starting blues when I hit Northrend at 68, so you may not replace everything while in Outland. Just take upgrades when you find tham and don't bother too much hunting for them on the AH.

I can't look up the stat weights I use from the office, but I can say that using the mod "Pawn" is quite helpful for making quick gear decisions while leveling. I have my own weights loaded, but the default ones may be fine for all I know.