Augmented Healing will get you a lot more bang for your buck. It makes cure light wounds (mass) into a pretty decent nova of positive energy.

Since you are down with the Brawler, and you already have Power Attack and Extra Turning, look into Divine Might, from Complete Warrior I'm pretty sure. It adds Cha bonus to damage at the cost of a turn attempt. If your cha bonus is decent, that can be worth it. It is of note that it carries that damage over for all attacks in a round, so if you can can pull off itatives (Divine Power) and other bonus attacks (Haste/Rightous Wrath of the Faithful), you get more mileage out of each turn attempt spent.

Divine Spell Power (Complete Divine) allows you to make a turn attempt with a special +3 bonus. You add your turning level adjustment to your caster level for a spell you cast that round. With buffs (cha bumps, circlet of persuasion, rod of defiance, etc) you can make it so that you average a +12 or so on the check. That means you get CL+1 at least automatically, up to +4 with a roll of 9 or higher. This combines with some cheese such as orange ioun stone (DMG), bead of karma(DMG), and other +CL modifiers to allow medium level clerics to do some pretty significant buffing (such as CL 20 Greater Magic Weapon(+5) or Magic Vestiments(+5) at about 12th level) or significant encounter ending (CL 20+ Holy Word at level 13 isn't hard, and completely ends anything that isn't good with less than 15-17 HD or so).

Domain Spontinaity (Complete Divine) works well with your Str domain, as you can cast Enlarge Person more than once a day. Its also really good for clerics with travel domain, since they can then cast fly or dim door multiple times, but you don't have that one. Luck Domain, not so much on the spells.

Also look into the Domain Devotion feats from Complete Champion. They do all kinds of useful stuff.