You really can't get the name of the computer the person is using to surf your site. The reason is, the IP that the person is using is going to be either a DHCP or static IP of the ISP which then a "hostname" is given to that IP. If anything, all you would get is the IP and hostname of a router or a switch. I suppose if someone one had a T1 line ran directly to a CSU/DSU and straight to a PC you may get their IP and PC name, but the likely hood of someone being that stupid hopefully isn't too high.
Hope that answered your question...
-- TTroutMPR
