I promise you you'll wish you didn't have that when you start doing CoT timed runs.
It also screws with your rotation on bosses, but that part really doesn't mean shit atm thanks to the sor bug.
Anyway, basic prot build:
Talent Calculator - World of Warcraft
Last 5 points can be kings, or benediction, or imp bom + imp hoj, or some in divine guardian, or whatever. Really doesn't matter much. When sor bug gets fixed, seals of the pure may end up somewhat worthwhile.
But if you're skipping any of the points there, you're missing something fairly important. Stoicism can be worked without, but I dunno why you'd want to unless you really don't think you need it and want imp hoj for more interrupts and the last 5 spent in kings.
As far as glyphs, the only one that's "really good" for paladin tanking is Seal of Vengeance. Consecrate limits your ability to move around while tanking large aoe groups, righteous defense is not needed (essentially only because there's nothing where you really switch tanks atm, there's just not a time in WotLK in which the tanks *must* be hit capped), avenger's shield glyph is just plain stupid, etc. etc.
IMO if you're focused on tanking use SoV major, Detect Undead minor, and fill in the rest with whatever the hell you want. I'm not even using those 2 anymore actually. My gear has gotten to the point where I'm using seal of wisdom for raid trash and even some 10 man naxx bosses.
Shit's just too easy for any of the ridiculously small gains to really be of any importance.