Insert Into Temp Table Based On If Condition

hello all,
this might be simple:

I populate a temp table based on a condition from another table:

select @condition = condition from table1 where id=1 [this will give
me either 0 or 1]

in my stored procedure I want to do this:

if @condition = 0
begin
select * into #tmp_table
from products p
inner join
sales s on p.p_data = s.p_data
end
else
begin
select * into #tmp_table
from products p
left join
sales s on p.p_data = s.p_data
end

Tha above query would not work since SQL thinks I am trying to use the
same temp table twice.

As you can see the major thing that gets effected with the condiction
being 0/1 is the join (inner or outer). The actual SQL is much bigger
with other joins but the only thing changing in the 2 sql's is the join
between products and sales tables.

any ideas gurus on how to use different sql's into temp table based on
the condition?

thanks
adi