Convert Traditional Ira To Roth If I Convert My Traditional IRA To A Roth IRA In 2010, Do I Pay State Tax In Addition To Federal Or Only Fed?

If I convert my traditional IRA to a Roth IRA in 2010, do I pay state tax in addition to federal or only fed? - convert traditional ira to roth

I live in New York and I'm not sure if I have to pay for New York state taxes, if you have a Roth conversion and federal taxes. Thank you!