Virtualization server market analysis

Hello,

For a business analysis of virtualization influence on data center,
We need a market analysis of virtualization servers. This analysis should be supported by a few tables and graphs (about 3) from the last 5 years :
1. Total sales
2. Market share
3. R & D investment
4. Strategic partners
The analysis must include market leaders analysis such as Microsoft, VMware, Xen Server- who controls the market by percentage.
The document should include advantages and disadvantages of each company.
I also would like it to include future directions - half a page about plans of this technology for the future.
References from well known research institutes.
5 pages total.
The perspective is marketing, not technology.

Thanks