Assuming that you have a host for your site (many ISPs offer a free space with their accounts) then software like EvoCam (See links below) makes hosting the webcam a simple fairly automated process.
This is achieved via the ARP protocol (the Address Resolution Protocol). The host sends out a request, basically asking "who has IP address so-and-so". The request, of course, is sent as a broadcast. If a computer has the specified IP address, it will reply with its MAC address.
CI Host offer numerous of services including management end users and it users, it is based via the website so that they can easily continue to help you online.
Yes; either directly via the CD/DVD drive or via a Mac compatible portable CD/DVD player.
No. It is acting as just an external Firewire hard drive.
Counter-Strike games are available to download via Steam.
Classic Mac OS games can be used in Mac OS X if the Mac is a PowerPC Mac, the game was written for PowerPC processors, and the version of Mac OS X is Tiger or older. They cannot be used on Intel Macs except via the use of a third-party emulator, such as SheepShaver.
For a dial-up connection on a Mac you would use the internal modem or an external modem connected via USB.
via google
Via online eum + any time
Not officially, no. (at least that I know of) However, there are some unofficial ports that some forum members developed. Although they are not official and may contain bugs, they still work and are the only way you can play terraria on macs (other than bootcamp and wine). Go check the terraria online forums.
As long as you paid for it, yes. Keep in mind that the anti-cheat protection in some games may interpret CrossOver as cheating software and ban you from online play.
You have to start 'Sharing' in System Preferences on your Mac if you want your PC to be able to connect to Mac. Then in XP, go to My Network Places and workgroup and find the shared files on the Mac.