For a mostly PVE build with some PVP fun as a sideline then you need mana refunds, good crits & damage, reduced interrupts and aggro reduction.

http://www.wow-europe.com/en/info/ba...00000000000000

I agree on the the armor comments, wasted point.
I do not like Magic Absorption - you don't get a full resist that often (think how many times you are the target of a boss spell) and you'll not notice the refund (think of how many extra spells you can cast with 5% mana - very few so a mana stone or pot is much more effective). Increased resistances by 10 hardly help anyway as you don't really have any fights at the moment where you will be needing any resistance gear at all, so again these are wasted points imo.
No point having reduced fire blast CD as it is a rare cast spell in your cycle.
Pyro and Blastwave are ideal talents to have and help load up early rank points. POM Pyro & Blastwave for the weekend PVP fun are treats and good fun with a scorch build which has stacked the debuff so you may as well have them both as you can live without the 2 points in increased range. None of the fights you have at the moment need the increased range as a mandatory.
If you can load up the points and not use Playing with Fire then you can replace most of it with Fire Power which does 2% dam per one point, whereas the Playing with Fire uses 3 points to give 3% damage *and* increases spell damage taken by 3% too.
I did not use Blazing Speed as whilst it's nice the proc rate is too low and therefore rarely used. I'd stick with Fire Power.

I think the above works well as a build (although not what I use myself atm) and it meets the criteria for what you use your toon for and what those roles need.

Hope this helps.

TL.