Metallic Perfection (3.5 Template and Feats, PEACH)

[Solaris]

Let's see...your mirran template does feel a little weak for LA +1, but not by much. Another small boon should do it. Oh, how about SR? SR 5+HD. That's a nice little boost (I have no idea if it fits with the Scars of Mirrodin lore, but metallic skin = reflect spells).

Spell Resistance is good for monsters, but it's a double-edged sword for PCs. SR requires a standard action to lower each round. Sure hope you don't want your caster buddies to give you a quick buff or heal. 5 + HD isn't too bad, but 10 + HD really makes it a crap shoot.