G'day,
I'm afraid there is no mechanism on the switch to be able to determine the names of PCs connected to it.
You can, however, see which ports other switches are connected to by using 'sh cdp neighbors'
You could try one more thing:
1. get the MAC address of the PCs connected to each switch port by using something like 'show cam dynamic'
2. go to each PC and co-relate its MAC with where you found the MAC on your switch.
Hope that helps - pls rate the post if it does.
Regards,
Paresh