You can transfer everything yourself, log in with your Apple ID and password, ....use migration assistant to transfer data over, or use an external HD to transfer data.
log into the APP store and download stuff you already purchased
Yes, I imagine after Xmas there would be large crowds at places.
Mac OS X v10.6: How to use Migration Assistant to transfer files from another Mac
One on one, if you use it, is an incredible training and helpful tool if you want to learn more.
If youre happy with where you are right now in computer tech. / use / etc. then thats a personal conclusion.
Even senior support staff use one on one to learn stuff, so its useful for most all skill levels.
generally I dont like such computer training stuff and self-teach, however One on one really is rather amazing.