You can take a full-round action and a swift on the same turn. A full-round is actually a standard+move, it doesn't stop you from taking free actions or using your swift.
Ah great! All the guides seemed to indicate that you could but I was confusing myself with standard and swift. Thanks
Technically RumpinRufus is wrong. Casting a spell as a full round action requires your full round once you start casting and the spell comes into effect just before the start of your next turn.
The proper order is to swift action cast your quicken spell FIRST then start casting your other meta-magic'ed spell (you can't swift cast a spell in the middle of casting another spell without losing the full round spell). Just before the start of your next turn your spell will go off and you'll be able to take your next turn as normal. Even repeating the same process (swift cast then full-round cast).
I hope that clears things up.
Shane, that would be true of a spell with a casting time of "one round", which is different than a casting time of a "full-round action", as confusing as that may be.
Sorcerers and bards must take more time to cast a metamagic spell (one enhanced by a metamagic feat) than a regular spell. If a spell's normal casting time is 1 standard action, casting a metamagic version of the spell is a full-round action for a sorcerer or bard (except for spells modified by the Quicken Spell feat, which take 1 swift action to cast). Note that this isn't the same as a spell with a 1-round casting time. Spells that take a full-round action to cast take effect in the same round that you begin casting, and you are not required to continue the invocations, gestures, and concentration until your next turn. For spells with a longer casting time, it takes an extra full-round action to cast the metamagic spell.
And a swift action may be taken either before or after your full-round action:
In a normal round, you can perform a standard action and a move action, or you can perform a full-round action. You can also perform one swift action and one or more free actions. You can always take a move action in place of a standard action.
Also note that if you must move and THEN want to cast a metamagic spell spontaneously (or perform some other full-round action,) you may START that action as a standard action, but one your next turn you must use another STANDARD action to complete it (instead of a normal full-round action performed on one turn, which is standard+move instead of standard+standard.) This also leaves you open to have your spell disrupted.
The "start full-round action" standard action lets you start undertaking a full-round action, which you can complete in the following round by using another standard action. You can't use this action to start or complete a full attack, charge, run, or withdraw.
Your second point is correct. Thank you for pointing that out.
As for your first point. Gosh. I never knew. All this time my group's been treating those spells like full-round casting time spells. Can't believe we missed that. Thank you.