Hosts you use for your projects?
warp: I'm using gandi hosting for my hobby projects.I think their virtual servers are XEN based, having access to the actual console via ssh is nice if you like to do your own OS install on your slice. (They also have easier web interfaces for those users who don't want to do spend as much time sysadminning, but I have no experience with that).http://www.gandi.net.
(it's a french company btw, so especially useful if you and your target audience is in europe :)