ocyen wrote:
There is a couple things you can do, and I'm gonna gear this towards getting into 5-man heroics. First of all I would suggest going into a deeper arcane spec at least 40 points for Mind Mastery. It will beef up your frost/fire spell damage until the point your empowered frostbolt or fireball starts performing better. Also, when your asked for your spell damage before they invite you the group you can say 675 instead of 537 which is a considerable difference in the eyes of a group leader.
Secondly, don't gem anymore for int or for sta and do all spell damage or spell damage/crit (depending on gem slot color for bonus). You can make up for sta/int by upgrading gear with stats (you have many items that don't carry any raw stats). Also you have no enchants; they make a huge difference. I can understand not wanting to dump gold into items you want to get rid of but you not going to replace everything over night. Figure out what slots you will upgrade first and enchant the a couple. To put it in perspective just from enchants you are down 100 spell dmg and 270 hp.
Thirdly, where to start getting gear? Well, first of all you should be doing the SSO dailies to begin with. Not only for the gold, but if you do them all you can get 4k+ rep a day. Reverered with them gets you a sword that with a moderate off hand is better than your staff. And exalted will get you an epic necklace. When in the queue for heroics always have H-SP chosen. It is the easiest one, is usually quick (for faster 3 badges), gains you rep for a nice ring (CE exalted), and you might get a Quag's Eye which you will use for a very long time. Also, in downtime do BGs. You can get enough honor from losing battle grounds for half a week (causal play) to get one item, and the Merciless gear is much better than anything you have so far. And if you get in winning groups it is that much faster.
don't forget to be hit capped before stacking damage/crit.
As for the spell rotation, assuming you are still taking stick with the scorch x5 fireball x7 scorch x1 for restack. Use a pom-pyro or pom-fireball when you have the chance. And assuming you won't run oom throw arcane power up when you can as well.
http://www.wowhead.com/?talent=oi0E00czxIzwZxgMzszM
is a possible build. You have a few options, take a pt from fire to max out mind mastery. Giving you 21 pts in fire. You could either put points into burning soul, master of elements, or critical mass. All are very helpful in their own way.