PS2 to USB connector

[Susan Hastings]

Hi, we have ordered the above thingy, which we are told may take 2 -  
4 weeks to arrive. We need it to attach a PS2 keyboard to a Mac (its  
a special keyboard for people with disabilities). The little device  
which used to come with printers is not suitable as its the opposite  
configuration to what is needed. Anyway, if anyone knows of a way to  
get one more quickly, please let me know. cheers, Susan.