I've used multiple vps providers through the years. Rule 1: Stay the hell away from Rackspace. I was a Mosso user for a while and then it went to hell. Switche

I've used multiple vps providers through the years. Rule 1: Stay the hell away from Rackspace. I was a Mosso user for a while and then it went to hell. Switched to Slicehost and was incredibly happy with them for years until Rackspace bought them. Then it went to hell when they migrated my vps to their infrastructure in January. I've since switched to Linode and been very, very pleased. They're inexpensive and periodically just upgrade your hardware capabilities at no increase in cost to you.