Choosing a chip

[rms2001]

Yes you can add switches to the Matrix, just gotta solder a wire to each side of the switch on the chip and put a switch in between the two ends.

The difference between the X2 Pro and the X2 LITE isnt alot other than the way you get them and how you flash them.
LITE Comes pre-flashed with the worthless cornwall BIOS and has to be reflashed to run any thing else but Linux. Has a 1mg chip, but only has two banks (512k each).
PRO Dose not come flashed and has to be hooked up to a PC to be flashed. Has a 1mg chip and has four banks (256k each)
And most of the time the Pro will come with the cable and the port to flash it.

You can buy the X2's and the Matrix chips from The Console Corner. Good dealer, I have bought from them and have sent friends there and never had any probs with them.
*If you do end up buying a Matrix DO NOT buy it from EasyBuy2000. It will take them for ever to get your order out, and if they screw up you mite as well kiss your money good buy b/c you will never get the order fixed. Its run by people who have their head so far up their ass they don't know what they are doing.