Backup ALL your SQL Server 2005 databases using ONE script

DECLARE @DBName varchar(255)

DECLARE @DATABASES_Fetch int

DECLARE DATABASES_CURSOR CURSOR FOR
select
DATABASE_NAME = db_name(s_mf.database_id)
from
sys.master_files s_mf
where
-- ONLINE
s_mf.state = 0
-- Only look at databases to which we have access
and has_dbaccess(db_name(s_mf.database_id)) = 1

-- Not master, tempdb or model
and db_name(s_mf.database_id) not in ('Master','tempdb','model','ReportServer$SQL2K5','ReportServer$SQL2K5TempDB')
group by s_mf.database_id
order by 1

OPEN DATABASES_CURSOR
FETCH NEXT FROM DATABASES_CURSOR INTO @DBName
WHILE @@FETCH_STATUS = 0
BEGIN
declare @DBFileName varchar(256)
set @DBFileName = datename(dw, getdate()) + ' - ' +
replace(replace(@DBName,':','_'),'\','_')
exec ('BACKUP DATABASE [' + @DBName + '] TO DISK = N''E:\DatabaseBACKUP\' +
@DBFileName + ''' WITH NOFORMAT, INIT, NAME = N''' +
@DBName + '-Full Database Backup'', SKIP, NOREWIND, NOUNLOAD, STATS = 100')

FETCH NEXT FROM DATABASES_CURSOR INTO @DBName
END
CLOSE DATABASES_CURSOR
DEALLOCATE DATABASES_CURSOR