@leirbag: I doubt it will work with modern USB mice, sorry. They depend on various drivers, and I obviously cannot implement them all. If the USB mouse works on a PS/2 port (using an adapter) then it will work on this unit as well.
That's {bleep}. Sorry.
USB mice support HID class, and this is standardized (which means also other HID class devices work perfectly with it).
Some mice also support bootmouse class, which is also standardized.
So if you rely on the latter one, at least part of them work with one effort. If you go for HID, then I presume that your PIC will be out of memory very soon, if you want to support all HID features.
Your USB port then simply replaces the USB/PS2 mechanical adaptor, according to your description.
Michael
