Found this bit over on blade.org:
To contain costs while growing their data centers, IT managers are consolidating computing resources into a smaller number of physical and logical components and working to automate resource allocation, application deployment and server management. Server consolidation using IBM BladeCenter™ and VMware® Infrastructure addresses the high-level architecture and opportunities created by combining IBM BladeCenter and VMware Infrastructure as complementary technologies to deliver maximum server consolidation.
VMware Infrastructure and IBM BladeCenter together provide a solid foundation for building dynamic, automated and self-optimizing data centers, delivering the highest levels of performance, scalability, robustness and security required for mission critical IT environments.
In one customer success story, this solution was employed to streamlines the computing infrastructure of Community College of Baltimore County via Faster Deployments and Improved Hardware Manageability
Virtualization was particularly intriguing, said a college official, because CCBC was in the midst of migrating to an IBM BladeCenter? system featuring IBM HS20 servers. By themselves, the blades would ultimately allow CCBC to run 14 server blades in the space previously required by just two full-size servers. Combined with a virtualization strategy, however, the BladeCenter could accommodate the power of 70 virtual servers in a single rack. For an organization intent on building efficiency, this was a dream scenario.
I have talked about it frequently, but to get the most out of your hardware and your set up, and to scale quickly and efficiently, virtualization with blades is a hard to beat way to go. More info at IBM BladeCenter.