updating a table with values from another table

Can someone provide me with the sql which will update the records in table 1 with the records from table2 that are different, but columns 'ID' are equal in both tables.  and also append any records from table2 that arent in table1.

I know the easiest way would be to delete from table1 then insert into table1 (select * from table2), but I don't want to enable the select into option on the database because it doesn't use the transaction log.

Daz