As a new player, something I wish were mentioned more often were the recommended order of feats to take, and what feats are useful to take at low levels and then swap. I've spent the last few weeks leveling an OCC to level 12, and I now know that there is little reason to take Maximize or Quicken until you have access to blade barrier (I took Maximize at lvl 6, and have used it maybe once in 6 levels). You just don't have enough spell points to justify using Maximize in the lower levels. And while not once did I ever think "wow, I wish I had quicken" prior to level 11, as soon as I hit 11th and got blade barrier I thought "wow, I wish I had quicken"
Blade barrier takes a LONG time to cast.
Same logic applies to Empower; while many people suggest taking Empower over Empower Healing, what they really mean is do that at high levels. Casting an Empowered Searing Light at level 4 was real fun for maybe three shots, then I realized I was out of spell points. Far more efficient to just melee everything and self heal through the damage you take. While you are still under level 11-12 the only things worth empowering are healing spells, and so Empower Healing (and the associated Enhancements) are far more useful.
On the other hand, while Extend is very helpful in the low levels (for any spell of 2nd level and higher, using Extend is cheaper SP-wise than casting the spell twice), now that my base buff durations are higher I'd be willing to trade it for something else.
My 2 cents.