How much Microsoft Tax do you pay?

Joe Wilcox of Microsoft Watch wrote an interesting commentary about the "Microsoft Tax" enterprises pay. Microsoft currently is flaking against Apple alleging Apple customers pay an Apple tax (which I would agree, but it's not money but loss of control, but that's a story for another time. The components of the M$ tax are:

• Client-Access Licenses (CAL)
• Software Assurance
• Versioning (Pulling out features into new products or enterprise editions)
• MDOP and Windows Vista Enterprise

Head over and read the full article. As with every tax: avoidance (in case of M$ tax: a.k.a pirated software) is illegal, however a good tax consultant can lower your burden. Microsoft's licensing options seem to be as confusing as your average state tax code. Why not call in the experts to lower your M$ tax?