[PD] PS/2 mouse+Arduino+Pd=awesome?

Hi all,

I've been using Pdunio with an Arduino Uno and analogue pots, IR sensors and buttons. It's been remarkably simple for a novice like me to use and get some cool/fun stuff working.

Now I'm thinking of hacking a PS/2 mouse/trackball into my Uno and I'd like to use it to control Pd data. I'm wondering if I'm going to be able to get the data from the PS/2 trackball into Pd?

I've found this: http://www.arduino.cc/playground/ComponentLib/Ps2mouse

and this: http://www.computer-engineering.org/ps2mouse/

I'm assuming Pdunio will not work because it isn't straight input data? Maybe [hid] or something else?

Sorry for the noobishness. Should I abandon this? Or is it going to be possible (considering that my coding/ electronics knowledge is limited)? Any suggestions for how I might go about piping the data through?

thanks in advance