both work for me:

select cast (getdate() as smalldatetime)

select convert(smalldatetime,getdate())

select @@version

results:

-----------------------

2009-07-17 09:16:00

(1 row(s) affected)

-----------------------

2009-07-17 09:16:00

(1 row(s) affected)

------------------------------------------------

Microsoft SQL Server 2005 - 9.00.4207.00 (X64)

(1 row(s) affected)