A quick info where you can find the Maximum specification for SQL Server 2008/2005 (32 bit & 64 bit).
SQL Server 2008 - Max Specification
SQL Server 2005 - Max Specification
There it is some big max possibility in SQL Server:
Database size - 524,272 TB
Databases per instance of SQL Server -
32,767
Filegroups per database - 32,767
Files per database -
32,767
File size (data) - 16 TB
File size (log) - 2 TB
User connections - 32,767
etc etc
Stay Tuned!