Is Lyx suitable for me?

[Panos Katergiathis]

Hello all

I am about to author and prepare a book on photography, which is bound 
to have many... well, photos :).
I will hopefully be using Lyx on an Intel-based Mac and i am wondering 
about two features (that is, if they are available or not):

a) Will i be able to have spell checking in Greek with something like 
cocoAspell ?
b) Is it possible that, whenever i insert an image, have it 
automatically scaled to fit on the with of the "page"?
c) Is it possible that, whenever i insert an image have Lyx create an 
auto-caption containing the filename of the inserted image?

Please assist

Panos