monit
vnstat

# pull in subpackages which shouldn't toss
# lots of extra dependencies into an image
collectd
collectd-apache
collectd-bind
collectd-cgi
collectd-curl
collectd-dbi
collectd-ipmi
collectd-memcached
collectd-mysql
collectd-nginx
#collectd-openvz
collectd-ping
collectd-rrdtool
collectd-sensors
collectd-virt