Few general newb ?'s

[gopher2011]

So i just ordered one of these off ebay, but it doesnt have a charger so, i noticed its just a mini usb, could i just charge this off my laptop or should i buy a cradle thing? where can i get one of these that are legit and not some .99 cent ebay stuff?

Also do you guys reccomend doing anything when just getting one, i.e. installing programs, or updates or something.

One las ? is can you get Windows mobile 6 on this thing or is it not worth it (Not much better)?

thanks