Comparing two detail totals in SQL

[Pete Helgren <Pete@xxxxxxxxxx>]

I need to compare a total from a set of detail records to a record that 
contains a single total.  Actually, I am looking for records that 
*don't* match.

I can get the totals like this from each record set:

select empID1, code1, sum(quantity) as tot1
from rec1 where recDate Between
070701 and 080410
group by empID1, code1
order by empID1,code1

select empID2, code2, sum(quantity) as tot2
from rec2
group by empID2, code2
order by empID2,code2

This works well.  But I need to compare the total fields from each query 
and select the records where the totals don't match (tot1 <> tot2).  
Both queries have the EmpID and code fields in common.

I think I need to use the queries with the "as 'table'"  keyword but I 
can't get my head around the join/compare logic.  Is there a simpler way 
to do the compare?

Thanks,

Pete Helgren