** Using WeBWorK **

This is a sort of follow-up to my previous question. I'd like a server on which I have some autonomy; a VPS seems the way to go. And I suppose I could just get one up and running using either the ISO or OVA images.

Which one is to be preferred? And assuming I get all this installed, I suppose I can populate the web server with other standard software (wordpress, limesurvey, webmin, etc)?

Thanks!