Unfortunately one of your problems is reliance on Microsoft Products and specific hardware even when you were switched to Linux, such as Office/Outlook and products such as the Dell Docking Station and Multi Function Printers who doesn't support any *nix, and Cisco VPN (look in to vpnc). That's like comparing using Windows and trying to get KOffice and Cygwin working on Windows and benchmarking so.

You pick a platform, and start using the tools associated natively with it.

Linux isn't a good suite for everyone, and definitely not in this case.