A few from the Spell Compendium that haven't been mentioned:
The Lust domain would be quite badly broken if it was allowed -- you get to add your class level to your charisma for one round, which would be just ridiculous at high levels, if used with a save or die spell. (Well, it says cleric level, but I believe there's clarification somewhere that this translates to class level.)
The spell list makes it more of the Creepy Stalker domain, though.
Family has a handy defensive ability (+4 dodge bonus to everyone within 10 feet, pretty much) and a bunch of spells sorcs wouldn't normally have. If you wanted to help out the party it would be good.
Wrath would be nice for a sorc focusing on melee (maybe a dubious choice, but some people like a challenge), since its ability lets you 1/day sacrifice wisdom for strength. The spells would be likewise useful for such a build.
It was already mentioned, but I want to stress that Inquisition could be really good if you wanted to combat mages -- the +4 to dispel checks is actually pretty powerful for a sorc, who can (and should) always have dispel magic or the like handy. There are some additional spells in the PHB2 and spell compendium that let you make dispel checks, and a relatively cheap item in the Magic Item Compendium that would give you a further bonus.
Lastly, the Heal domain could be an interesting choice.