3.5 - Improved Familiar Question

[MaxiDuRaritry]

If you take Improved Familiar, does that grant you access to ALL of the improved familiars listed in all the books, or do you only get the ones listed for a specific instance of Improved Familiar in one book? If I'm a changeling wizard, does my familiar gain access to all of the monsters listed in all the books? Alternatively, if I lose my familiar (via dismissal or death), can I choose any familiar listed under the feat entry in every single book with improved familiars?

An inquiring mind wants to know!

[thethird]

You get access to any improved familiar.

[Telonius]

As long as the improved familiars themselves don't offer any restrictions, I would think so. (Not going to look it up at the moment, but if for example Stormwrack gave you a Dire Goldfish if you're in an aquatic environment, you couldn't pick it if you're on land).

[Thurbane]

Yeah, my understanding is the feat gives you access to any IF that you meet the reqs for.