New Best Practices Articles are available (May 2007)
You can check out the three new Best Practices Articles
Predeployment I/O Best Practices
https://www.microsoft.com/technet/prodtechnol/sql/bestpractice/pdpliobp.mspx
by Mike Ruthruff
Partial Database Availability
https://www.microsoft.com/technet/prodtechnol/sql/bestpractice/pdbavail.mspx
by Danny Tambs
Comparing Tables Organized with Clustered Indexes versus Heaps
https://www.microsoft.com/technet/prodtechnol/sql/bestpractice/clusivsh.mspx
by Burzin Patel, Sanjay Mishra