The pain of being DINKs (Dual Incomes No Kids)

Now that tax time is here, it is time to be reminded just how much it sucks to be DINKs.  Even with a mortgage, donations, education loans, refinance costs (1/2 point), we are going to owe big time.  While we were overseas, w/o a mortgage, Chrissy and I both claimed 0 on our W-4.  Now that we are back, I claimed 2 figuring, with our mortgage, we should be good (Considering, when it was just me, I had 5 exceptions with my mortgage and still got money back).  Well, looks like that was a gross mis-calculation.  We might get wolluped this year in taxes.  That is the only problem with not having little tax exemptions running around.  We will see once I get the final info, but it isn't looking good.