Hi Leah! If another message from me posts - I did something and lost the message I was just writing to you! What I was saying was - Welcome and congratulations! Two beautiful little ones indeed! My parrotlet Kiwi is 11 years old now so I don't remember much about having a baby bird, but there is a wealth of information in this forum so have a look around. In this particular forum, there is an excellent "TIP" on bringing home your new bird. You will find a ton of information there. Smaller cages are recommended to start, then after that, the bigger the better. Parrotlets are climbers and typically love to play with toys of all sorts, so experiment and you will soon see what works for your bird. Kiwi is a big shredder so even something as simple as a paper towel tucked into the bars gives her hours of entertainment. Some create their own toys - others provide great websites on where to buy toys and supplies (a word of warning - prepare yourself to lose control of your credit card if you have a look at Drs. Foster and Smith!!).
As for taking him out of his cage, try to let him come to you. I have heard that a hand reaching for them can look like the gaping mouth of a predator and you don't want him to fear your hands.
Biting is something they will experiment with, and they will go through a puberty where they are cranky and even more bitey. And it hurts, so be careful for your little one. Patience is the key - you have to persist with the handling or else they will not learn. Look at the threads on the gentle beak technique and alternatives to gentle beak that will give you some good ideas.
Parrotlets are highly intelligent little birds, big manipulators and sheer joy! This forum is an excellent resource, a great place to express concerns, ask questions and share ideas. I have found that people are truly vested in your birds good health and happiness, so it is like you are talking about your kids (oh - and if you see the word "fids", it means feathered kids - just learned that myself).
I look forward to hearing about your experiences and watching little whats-his-name grow!