Hey,
regarding Jims worries ... maintaining a vServer could be easy as long as you always keep an eye on security updates (well, I know, that's exactly what Jim said) ... but even this is easy ...
on a forum vServer there're usually only a few necessary packages
an Apache + mod-php (...)
a MySQL RDBMS
and a SMTP server
there's no need for FTP services as all administrative stuff could be done using SSH/SCP (which, cleverly configured, is really secure IMHO)
Now if you use a Debian distro as host OS there's quite an easy cronjob (run nightly or even every 6 hours) which takes care of up-to-date security issues
#!/bin/sh
apt-get update >> /dev/null
apt-get upgrade -y >> /var/log/nightly_updates.log
apt-get is available on other linux distros too ... so, maintaining a vServer/rootDS, dedicated server this way shouldn't be that hard ...

EDIT: hehe ... should have had a look to
www.one.com first

well, that shared hosting package with 5GB is really cheap and obviously quite stable ... and has a lot of features which normally could be found on manually installed vServer ... regarding these information I think it's worth a try
