Converting Traditional IRA to Roth IRA when moving out of state?

I have some money in my traditional IRA account that I would like to slowly convert to Roth IRA over the next few years as I will be going to graduate school after working for a while (and I do expect to be in higher tax bracket after I graduate). I figure since I will be in school for a few years, I will be in a lower tax bracket and want to take advantage of this. The school is in a different state (MD) than the state I currently reside (NY). So the question is, when I do the conversion, which state tax will I be paying?