EMC vBlock is great way to reduce the overhead of complex Infrastructure installs and to reduce mistakes. But, it comes at extremely high cost and vendor lock in.. (Cisco,EMC, VMware!!!) Mercedes Mclaren of Technology Vendors!
My advice is, copy the vBlock reference architecture and do it your self and save a ton of money..
Partner link for VCE – http://www.vceportal.com/
Good interview with EMC – http://chucksblog.emc.com/chucks_blog/2009/11/behind-the-vblock.html