if you want info on the different frogs and newts for what you can get go on caudata (link in my footer) as it's a site dedicated to newts/salamanders and frogs. I find it really useful.
EDIT: I had RCS with my newts and the newts weren't too impressed with it.
I have no experience with frogs/toads but people have said that they wiggle food in front of a frog and it doesn't notice it's there; of my newts; the two aquatic ones are no problem; the terrestrial one needs hand feeding (I don't mind doing it) - but either way you have to be prepared to sit a while and feed them if you need to.
I like the look of Fire Bellied Toads. But I LOVE newts; there are so many different species out there; but for me I love their toes and their arms; if they fall off something (a plant), then they waft their little arms around in front of them like humans do; they are so funny. Plus with my three; they all have completely different personalities. They like to play "follow my finger around the tank". They are so much more interesting than fish (I didn't just say that on a fish forum lol) as they have arms, legs and toes and they are really cute.