Hi there.
I'm new to Arcane and just tried it once (yesterday at twins). I actually gemmed for Int mostly because my raid leader didn't want me to get an innervate (i got one anyway) and thought of regemming if I experience to have likely no mana issues.
Here's the WWS of the kill - it was not-so-clean 'cause our Warlock tank died at 10% or something.
You can see I was interrupted when channeling Evocation (cause of my stupidity), so ~4500 mana were missing and I forgot the last Drums of Restoration. That's probably why I had to get an innervate.
Anyways, is there any advice you old hands could give to me just by looking at my gear and the WWS? :P
But all jesting aside, could any SW raiding Arcane mage post some twins WWS for comparison? I already saw some, but they were all of the same mage \o/