Would appreciate any suggestions as to brand and model of laptop. Will have Windows 8.1, MS Office suite, Outlook, Firefox. Used for word processing, spreadsheets, email, web browsing with multiple windows open, Skype. No gaming, CAD, video editing. Needs to be fast, have a decent camera for Skype with clients, at least 15" screen, can be used with dual monitors, will be used with external keyboard and mouse, decent quality.