The installation documentation (http://www.vmware.com/pdf/vi3_installation_guide.pdf) still shows SQL2000SP4 as a requirement with no mention of SQL2005 which means it's unsupported. Yet, the VMware KB says SQL2005SP1 is now supported.
VMware, please update the documentation
This is an important piece for the infrastructure and can easily be a showstopper planning the environment without the proper back end DB. It was for us. We had SQL2000SP3a but now SQL2000SP4 or SQL2005SP1 which meant we had no supported SQL environment for VC2. Due to this, we had to use Oracle 9iR2 as our back end database which we did have in house already.
Jas