Situation: Married w/ kids, 29, about to finish grad school, no debt. Accepted a job offer with $87k salary and an employer contribution to an SEP-IRA equal to $13k/year. No additional household income. We have ~$10k savings and no retirement savings. With our budget we anticipate having $20k-25k a year we could put towards saving for a house down payment or additional retirement savings.
Question I am trying to answer: once I have my 3 month emergency fund completed (should be relatively quick once I start the job), I am wondering how to split the extra $20k-25k a year between saving for a house down payment and additional retirement savings?
Our goal is a 20% down payment, which would be $50k-60k. We sure would like to get a house ASAP but with having nothing in retirement savings yet, and since the earliest retirement contributions are likely to have the largest growth by the time of retirement, I was thinking it might be good to save extra even with the SEP-IRA, perhaps in a Roth IRA.
Question that is more likely to be able to be answered here: given my situation, goals, and question above, what questions should I ask myself to determine how aggressively I should invest extra in retirement now vs. saving up for a house?