well...the adjusted gross income (agi) limit (for a roth contribution) for a single person in 2011 is $122,000 and the phaseout starts at $107,000 so, before you make a contribution for 2011, you may want to show your broker your tax return...jus' sayin'
also, if you like roth's (which i do) and the govt drops the agi limit on conversions again (like they did in 2010), you might want to consider taking some of your traditional ira funds and converting them...you'll have to pay tax now, but none later...of course, if your agi is going to be significantly lower when you are retired, and you pay the tax now (i.e., when your agi is high), the numbers might not work out...food for thought, though