mini - mac mini not detecting KB at boot

Hi, I have a slight problem... I have found a workaround for it, but it is not exactly what I want.

Basically, I can't give my mini any boot-time key commands. Why? I'm assuming it is because my keyboard is not being detected!

I don't have a USB keyboard and mouse. For this reason, I must use a PS/2 -> USB converter. In OS X, it is detected and works fine, but shows up as an adapter and not as a separate keyboard and mouse. I'm assuming that it is not as transparent as it needs to be...

Has anyone else ran into this problem? Any solutions to suggest besides getting a new keyboard?

On second thought, anyone want to sell me their bluetooth keyboard? :-P (it would have to be for cheap )