Nice! Congrats! Banks look at monthly minimum payment on debt you are paying on when it comes to figuring out your loan amount. The lower your minimum payments are, the more mortgage you can afford in their eyes. I would suggest going the route that will save interest and lower your total minimum monthly payout. Also, ask about the possibility of paying points to help lower your rate when you look into securing a loan.

I'm not sure if all banks look for this, but mine wanted to see that I was working in the same field for at least 2 years prior to purchasing. Just food for thought since you said you just got a higher paying job.