I'm not quite ready for a dedicated yet but would like the freedom a VPS offers. I have been looking at a lot of providers and would like some input on what specs I should keep in mind for my needs.
I run/will be running about 30 websites. Most if not all will use some sort of PHP/mySQL application (Mambo, vBulletin, phpBB), so I know guaranteed RAM is a concern. What's the minimum you would recommend to keep the sites loading quickly? Are there any other specs/numbers I should keep in mind?