Developing on multiple VPC's

Hi guys,I'm wondering what technologies you're using for developing CRM projects. Especially when you have multiple clients..Personally I use virtual machines via Virtual PC. Each PC is about 10 gb huge though. So I was looking around on the internet and I found a good solution to that. Now this is what I do:- Create one VPC which has Windows Server 2003, MSSQL, CRM, Sharepoint, Office, Visual