hi everyone! i'm new here...
thinking of having a guinea pig as a pet...
currently doing research and reading about gp to prepare myself.
i have a few questions though, i've tried asking in petshops but i'm not very satisfied with the answer given.

1. how much pellets should i give a gp a day? izzit ok to feed pellets in the morning and fruits/vege in the evening?
2. i've seen petshops selling the metal ball thingy to put hay inside (for rabbits), can i use that for gp as well?
3. can i toilet train my gp, as in only poo poo and pee pee at a certain corner in their cage?
4. about how much do i need to have a gp (comfortably) for the cage, bedding, toys, food, etc?
5. any other advice for a new gp owner?

As I've read in a few forums, oxbow is one of the best brands for pellets.. what about hay? any brand to recommend?