I'm thinking of starting with a $99/month server with probably 512 and a 20 GB hard drive just to get started.
If I need more power/space, are hardware upgrades available?
How much to upgrade from 512 to 1GB of RAM later?
How much to add a 40 GB hard drive later?
How much to get more than 8 IP's? (I believe I read somewhere that 8 IP's are free).