yea not a huge amount for ccna in aus. My advice once you go for a job as a sysadmin don't work anywhere where microsoft is the main OS for desktop/servers. seriously the company i work for (my role really is a mix of sysadmin/network admin) is a microsoft gold partner, and i'm seriously fed up with there pathetic products. I'm probably being a bit aggressive right now, seeing how its 9:30 at night and i just installed the second daylight savings patch since I've been with the company, and well now our production dataserver/crm server is not coming back up. *Y A Y*.
In regards to your questions about the sysadmin role, well i work in a team of 4, one customer support girl (she takes all the calls) and 3 sysadmin/network admins. Most of our time is dedicated to updating prodcution websites, handling support requests and fixing server issues.