I just purchased my first ipad 2 today. I have read a lot about the cloud storage possibilities however my work computer is firewall protected and won't allow me to get dropbox etc. I use Microsoft Office Excel, Word Powerpoint etc a lot and would like to be able to share these files with my ipad to work while travelling etc. Not sure the best route to go. First do I need to purchase Docs to Go, Quick Office etc. and which one. Secondly if I plugged in the ipad to the computer would I be able to send spreadsheets and presentations to my ipad using the usb and itunes. Any help would be greatly appreciated.