Rob Valliere has released an excellent analysis of Linux as a Windows 2000 replacement. The article has a nice list of Linux-equivelents to Windows applications, and a cost analysis.
“This review focused on Red Hat Linux 7.1 from a business user's view and attempted to answer my client's question 'Can Linux be used as a replacement for Windows 2000'”
” Based on a solid Linux business plan, my client decided that Linux was a good investment for most of the company's employees…”