Setting up your own personal web server from home is a good cheap way of learning what you will need to do once you have a commercial server. However generally you will have bandwidth issues but it really depends on what you are going to be hosting?

Some of the points I would like to share when setting up a home network are; There should be a very good firewall installed on the machine. Not only this, the configuration of this firewall is very important. In home machines, we may install softwares which we may not be installing on live servers over DCs. When these home machines go online without proper protection outside network hacking attempts can be an issue which may try to use the weak softwares that reside on the machine.
Another thing you should take note is of a good internet connectivity. When you host a domain and when the hit increases, the webserver should have the ability to handle it and the internet connectivity plays a major role in providing feasible data transfer. Also you should make a through study regarding the customer support you get from the ISP, as it would be your final resort when there is connectivity issue.

It doesn't make sense to do this for business, but if you want to fool around, go for it :-)

Hi

Installing server at home is quite a big task, problems you are going to face is:
1. Server Licencing
2. Cooling system you need at least 23 degrees
3. 24/7 power with our interruption.
4. ISP connection you need T lines which is very expensive.
5 Hardware support required with high redundancy of HDD like RAID 01 or RAID 5.