Internet-Based Secure Clustered FS?

[Kenneth Miller]

All,

   I'm looking for a solution that would allow me to securely use  
VPSs (hosted VMs) or hosted dedicated servers as nodes in a  
distributed file system. My bandwidth/speed requirements aren't high,  
space requirements are potentially huge and ever growing, superb  
security is a must, but I really don't want to worry about hosting the  
DFS in-house. Is there any solution that's capable of this and/or is  
there anyone currently doing this?

Regards,
Kenneth Miller