#1 looks like Crassula, but I'm not so hot on succulents so don't take my word for it. #3 is an Asparagus of some sort.
This is the unfortunate part of common names as they can be misleading. For example names with 'fern' and 'palm' (just to name two) are often given to plants that are neither.
I think number one looks like an Aeonium-like plant. I like number three I would to like the name of it. :)
Does have a vaguely Aeonium-ey look to it I suppose but I think most of the common ones tend to form upright low growing shrub-type plants and not trail. I could be wrong though there could be a trailing form....
I think Junglekeeper identified #3 correctly earlier in the thread blake, the botanical name is correct....just it's common name incorrectly implies it is a fern when it actually isn't.