My alternate view:
Student Loan - assuming it's fixed, I'd leave that alone and pay the minimum. You'll likely never see rates this low again for the next 20-30 years.
Housing - Look around for a house that you can do a little sweat equity in (as another poster suggested). You have a good sum for a down payment, and 20% will avoid PMI fees. Also, as with the student loans, you'll likely never see rates this low again for the next 20-30 years on a mortgage. Getting the lowest rate on a mortgage for a $150k-$200k home has HUGE savings over a 15 or 30 year term compared to paying off the student loans and waiting on buying a house, with a likely higher mortgage rate. (PenFed has great rates on mortgages)
IRAs - I would also fund that, assuming you can find a $200k house ($40k downpayment, leaving $40k split between an emergency fund and IRA contributions).