application with critical database

Dear all

I am a pretty new in the development world fresh from uni. I am doing development on a system that has a security database. Access to the data in that database is pretty important. So in case the main server where the database is stored for soem reason fails or gets compromised i need to have a second copy with the most recent data in that database and keep the application up and running. The data i have is stored in a SQL 2005 database. What are the recomended aproaches for acheiving this needed reliability?

Would running the SQL Agent every 2 minutes do the trick? And replicate the database to another server and then have asecondary deployment on that server running as a backup? Or are there any other means?

Any advice is apreciated.

Sincerely

See if below links can be useful.

http://msdn2.microsoft.com/en-us/library/ms151247.aspx

http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx