I have 3 computers, each needs a completely different and unrelated IP address AND Mac address. HELP

I have 3 computers, each is running a different Ebay account. Ebay installs spy software on your computer to check your mac address. They also check your IP address to see if you have multiple accounts. How do I set up an internet connection so each computer will have a different IP address AND MAC address? If I get dynamic DSL, is there a way I can use 3 DSL modems and connect the DSL line to whichever I need to use? What company offers this kind of service and what package do I need?

Thanks!

I have 3 computers, each needs a completely different and unrelated IP address AND Mac address. HELP!?hijackthis

once again.....if you have 3 PC'S, each one will already have their own IP and MAC addresses....those are their unique identities on the net so they can be recognized from all the rest of the PC's on the net

I have 3 computers, each needs a completely different and unrelated IP address AND Mac address. HELP!?malware

IPs are completely unrelated except for the device to which they are connected. It seems like it would be easier to stop ebay from installing spyware an cookies. Why not use a secure proxy service?
A mac address is assigned to the LAN hardware and each computer is assigned its own IP from the router.

You could install mysql and be able to setup each as its own server with dynamic IP's