Ive never been the type to like to aggro entire areas and aoe. Ill do that occasionally, in any of my dualbox mixings but for the most part I like to burst targets down. Atm my current is a full frost mage level 65 and a lolsmite holy Priest level 64 (mage is a bit ahead):
http://www.wowarmory.com/character-s...alyon&n=Vindle (Missing BoA gear and new chest)
http://www.wowarmory.com/character-s...n&n=Holydemise (Missing BoA Shoulders)

I stopped playing both because I got really really bored. It was basically Frostbolt/Smite spam twice and dead. I know a little about Mage's arcane but nothing about fire (same wtih Priest's shadow). I was thinking about trying Arcane/Disc but id lose the lolsmite but gain penance (never tried that spell before). I dont think shadow would be best cause I still like to keep bubbles and heal my mage.

Ive gotten other dualbox sets to 70, but want this set to actual go past 70 and do northrend as a dualbox (ive done solo twice so nothing but the dualbox is gonna be new). Any input would be great, I dont think theres anything wrong with the combo I think I wanna find a change of pace that I dunno what other combo spec would be good for questing. Thanks!