Congrats! Many good things happening.
This is going counter to what I was saying back in January in your first thread, but I'd lean towards the traditional IRA while you can. What can I say? The more I learn, the more the traditional makes sense to me. We are pretty solidly in the 25% bracket - so we are saving a lot of taxes right now with traditional (assuming I can get our MAGI low enough to make traditional contributions this year) if you've got enough deductions to get down to the 15, 10, or 0 percent brackets the Roth looks better and better, but unless you're all the way down to 0%, a case can be made for traditional over Roth contributions. Marginal rate on deposits vs effective rate on withdrawals. State taxes play into this as well - assuming you can make more money by working in a high tax state maybe the plan would be to accumulate there, saving that much more on taxes by putting the money into the traditional IRA, then retire to a no-state-income-tax state when withdrawing.
Roth is more flexible in that you can withdraw contributions at any time, so there is that, but the higher your tax bracket today, the more that flexibility costs you.