What are your "daily administration" tasks? What distro are you running?
Logwatch and cron emails go a long way to helping you keep abreast of what's going on on your servers. Beyond that, products like Puppet can help automate things like pushing out packages, changing firewall configs, etc. There are also tools like Parallel SSH that can help you manually execute certain command lines on a bunch of servers at once.
If you're running a debian-based solution, there is a package called apticron that will run periodically via cron and can email you a report of when there are packages that need updating. I know there is a similar program for Redhat/CentOS type distros, but the name is escaping me currently.
As far as monitoring goes, there are a vast number of packages that you could check out. I'm rather partial to Nagios, but there are many free and for-pay systems out there that can do a good job. Without giving more details, though, it's quite difficult for us to give good recommendations for your specific situation.