switching from android help

hi guys. im an apple newbie. in fact i've never owned an apple product let alone an ipod. i am interested in getting a new iphone, however i have some reservations. i am currently using an android phone and i love the fact that i can just plug it into my laptop or pc and create folders and drag and drop files in there. it is important for me because i need to sometimes email attachment files for work. can i do this with the iphone or do i need to do some tweaking or install an app for it. i know apple has their own system and standards. although the android has pretty much everything i need because i can careless about itunes and music. however i do want to give the iphone a try. oh also can i charge it by plugging it into a pc like my android? thanks for your help!