Max Number of indexes Per Table

In sql server 2005 
Clustered Index 1 + Non clustered index 249 = 250 index

 In sql server 2008/2008 R2/2012

 Clustered Index 1 + Non clustered index 999 = 1000 index

Reference: http://msdn.microsoft.com/en-us/library/ms143432(v=sql.110).aspx