With a two level dip, you can net 4 known.
I suggest, for the most part, that Iron Heart Surge is invaluable in the late game. Even if your DM tones it down to say it only cancels an effect on you, and not the whole spell, its a *must* have for versatility and survivability.
Don't underestimate wall of blades. This little 2nd level counter with a +1 spiked gauntlet of iron heart +(whatever stance he uses) gives you an attack roll at +7 to counter one attack. Even ranged (read ray attacks from wizards or touch spells). If the spell isn't auto hit, a strong bab character will deny that magical nonsense. This is a bit campaign dependent but ranges from ok to WTF.
Don't underestimate pearl of black doubt. If you have a build that emphasizes AC, this is brutal. If you use things like stand still to avoid being attacked, this is worthless. Currently using it with a Ordained champion with Law devotion and divine ward. If they miss, its pretty much going to force them into the 5% range in short order.
Emerald Razor: If you are fighting something with an AC high enough that your itterative attacks are failing to hit and/or your primary is not assured, this is a life saver. Dump your full bab into a power attack and smack them with this once. It'll knock the taste out of their mouth for a quick 60-70 damage. Its not as brutal as a charge with a pounce, leap attack, and all that jazz, but charging into an AoO and getting swallowed whole doesn't help anyone anyway.
The diamond mind save counters are sexy, they can fortify your bad saves. I suggest paying careful attention to the fort/reflex ones. If you fail a fort save, you are typically dead/lost. Reflex just does lots of damage. When I dipped WB on my cleric, Action before thought was the one I grabbed. A cleric that makes all his reflex saves + all his divine magic protections makes him nearly immune to energy attack types like breath weapons. I like seeing fort 16 reflex 8(17 concentration) will 14 at level 10. Apply this to your weak save and you'll smile simularly I'm sure.
You'll notice I'm pointing a lot to counters. This is a style thing. most of the hit and X type initiations are not going to be scaled to where you need them. Boosts and counter whoring is what you do for dips, imho.