Just dinged 65 on my fire mage and I've been having a terrible time with equipment - not finding it, instead, making up my mind on where to go with it.
What it inevitably comes down to is crit percentage vs spell damage bonus.
I'm hovering around 330ish for bonus damage and 17-18% for crit bonus and it inevitably seems like any small boost in one takes a big chunk out of the other.
Now I know some are going to say "Peh - you'll be 70 in five levels - dont worry about it" but its not like I'm powerleveling this toon 18 hours a day and it'll be doing heroics and Kara by the end of the week (or even month most likely). I also enjoy doing the BG daily with it so that's a partial consideration.
So what's the focus with a mage - +dam or +crit both while growing up and upon maxing out at 70?