I have some ferret experience.
We used to have them at the pet store I worked at.
They are master escape artists. Anything they can fit their head through they can probably fit the rest of their body through. They can also figure out the more simple latches, especially the latch is loose.
Ferret food is probably best, although some people feed them cat food. There are also a couple of supplements that you can get for them, wich some people swear by.
You can litter train them almost 100%. You start by putting the litter box in the corner they normally "go" in and taking a little poop and peed on litter and putting it in the box, while cleaning the rest of the cage spotless (I used to rinse real well with soap and water and then spray the whole thing with vineger, then wipe dry.)
They understand corrections, so you can scruff them if they bite. We used a flick to the underside of the chin if they bit, of course, everyone has their own methods.
They can bite VERY hard if they want, and they have pretty strong jaws.
Try to bathe with soap as little as possible, although descented they still have a very oily and smelly coat, and the more often they are bathed the more they tend to smell. Water only baths are a great alternative.
thats what I know