You have two choices:
Of course, you could also buy PSE 11 and then you should be able to work with the RAWs directly.
Having invested in a full frame camera you may wish to take a look at Lightroom 4 which has all the same raw tools as CS6, in a very intuitive interface. The Lightroom library is very similar to organizer but much more powerful. LR4 will pair very well with PSE10, set up as the LR external editor.
A trial version is available at the following link which you can try free for 30 days.