Richard, the only idea I have about Rackspace.com is that they host Webhostingtalk.com, so judging by WHT uptime can say their should be rather stable and clearly expensive.
@moromara:
Solidhost.com has been in the industry for quite a time, I was just wondering how they allocate support time for clients on dedicated and vps deals? Is it a set amount of hours per month? Or you can open tickets in the help desk time and again?