For starters, Ola Hallengren's script for Backup, Index Maintenance, and DBCC checks.
I've done the research and spoke to Ola in person at the 2010 PASS Summit.
Ola's good references come from no less than Microsoft, Red Gate Software, Quest Software, and Microsoft MVPs.
I think Ola Hallengren's maintenance solution is a BEST PRACTICE.
I have a few questions for you.
Do you agree?
Do you use Ola's maintenance solution?
Do you use Ola's solution as is or have you modified it?
Please respond in the comments.