So I have a couple questions about this subject. From the other posts I've read I gather that I need to use a Dynamic DNS if I don't want to buy a static ip. I want to put Apache on my old computer and put another NIC on it to make it a proxy server. This should be OK with any ISP if it is only for personal use and experimenting, right?

If I did start to get traffic on this website that I am hosting at home then what would I need to do or what service would I have to get from my ISP to make this copacetic with them?