Any cloud-type solutions less expensive than Rackspace Cloud?
I have two WordPress sites -- one business, one personal -- that are generally low-traffic but occasionally will have traffic spikes. I like the concept of Rackspace Cloud, but at $100/mo., it's way beyond what I need on a day-to-day basis. Can anyone recommend a cloud-type solution (i.e., something that scales up automatically if an article generates a traffic spike) that's more affordable than Rackspace Cloud?
Rackspace's Cloud *Servers* looks appealing from a cost/features standpoint, but I'm a newbie when it comes to managing servers or server instances and would prefer to have support a phone call (or online visit) away.