lol at Gio (12). it looks like it needs a caption. something along the lines of "Yo! What's up?" or "Just chillin wit my rents."
great pics.
discs vs. prints. you'll get all kinds of arguments about that. the more established photographers will tell you that prints are where you make the money. they might sells discs but at very high prices.
others will tell you that they don't want the hassle of prints and would just rather give a disc.
i think it's going to come down to what your personal preference is going to be.
as for how much to charge, just remember that your work does not end after you take the pictures. you've invested time before the photo shoot to set up the appointment and you'll invest more time to post process the pictures. you'll also be delivering the disc or prints and you might even have a showing where the customer pics the pictures they like.
starting out, i'd probably say you'll be spending at least 3 hours per customer. 1 for the photo shoot and 2 for post processing and misc stuff.
so how much is your time worth to you?
keep up the good work though and definitely get more shots like Gio (12).