Plant mystery! Help with ID?

[likerain]

My boyfriend's grandmother recently passed away, and we subsequently inherited one of the many houseplants that she owned and cared for. The only problem is that I've no idea what it is exactly - or what "they" are, to be more precise, as there are three different types of plant in this one container that we received!

I've snapped some photos in the hopes that someone might be able to ( help me identify them? )

They really are lovely; my beau's grandmother loved to garden, and she loved her plants. I would feel just awful if any of them died due to my ignorance. :(