Here are some more free tools that I use a DBA. You can google the names to get the to the web sites.
DTSBackup2000 - Backup and restore DTS packages. Easy and fast
SQL Recon - Scan the network for SQL servers. Great to see if you have new SQL servers that you didn't know about
Scuba - Free db assessment tool from Imperva
Visustin - Creates flow chart from sql scripts and many other languages likc VB, .NET. C#, Java, etc
SQL Digger - Allows to to search for anything within DBs
DumpSQLSec - Audits / reports on users roles, permissions, etc
Hope you enjoy them!