Get the new Ink Bold. You'll get 50,000 for hitting the $10,000 minimum spend plus at least an extra 10,000 for the spend itself (assuming all your spend is 1x).

If you decide to get a little creative and crazy, you can buy some gift cards at Office Depot (which will get you 5x points) and easily rack up an extra 15,000-20,000 UR points.

You're looking at a minimum of 60,000 Chase points if you get the new Ink Bold and maximum of over 80,000.

I'd definitely take the 60,000 Chase points over the 85,000 Amex points.

Just as a data point, I got the old Ink Bold in early Nov. 2011 and got the new Ink Bold in April 2012. They are considered two different cards, so you will be able to get the new one, even if you keep the old one open.