I've got a dedicated server, and just want to properly test it out, if you don't like it, don't have it!
Ok yeah you can have a subdomain, but the subdomain will only be your username, e.g: joxley1990.everythingonline.org, which is why I suggest a free re-direct as well, up to you though!
If you just want storage space, see this thread. http://computerforums.org/showthread...light=accounts
The server is on a 10MB 1:1 line, soon to be a 1GB 1:1 line.. so it's pretty fast.