Possible to have different ringtones/sounds for contacts?

Hi guys...

I'm looking into switching over from a Droid Razr MAXX that has been slowing down to the point of being unusable (tried factory reload and everything) to a new iPhone when the 6 series comes out in September.

I've been doing alot of research on different elements that are important to me such as multiple Google calendar syncs (my wife and I both have a personal calendar that we can view), camera apps, and a few music apps.

There's one thing I can't see to find anywhere. I know you can make custom ringtones, but my question is can you specify a particular ringtone for someone in your contact list? or is it just ONE ringtone for everyone?

And to take that a step further, can you assign a different notification sound for a person in the contact list? For example, I have a ham radio buddy, so when he shoots me a text on my Droid, it beeps out his callsign in morse code, or like when my wife texts me it plays a clip of Worf from Star Trek. (heh, we went thru a next generation phase... "Captain... incoming message.")

Thanks very much for any info!!

--rob