We have used Rack911 and they are just true people you could call awesome
How ever they don't have any fixed rates and quote you on your needs and sometimes it can be a arrow to the knee for people having particular budgets.

Thats where PlatinumServermanagement guys come handy, they have a fixed rate of $29/month and they are second to Rack911, their support and options are great aswell but I still feel more professionality with Rack911.