I would agree with pwaring. If you want a 24/7 website, doing it on your home computer isn't a very practical idea. Depending on your patronage, DSL or cable might work, it might not. If you want a www.namehere.com address, that's a bit more complicated than just giving people http://132.251.21.23/ (or whatever your IP is)...
And that's assuming you don't have a dynamic IP scheme going at your ISP.
If ALL you want to do is open port 80 and let people view web pages through that, without the www.yournamehere.com, without anything 24/7, then you could just get Apache or Frontpage or something...
And then that opens a whole new can of security-related worms.
Bottom line: If you aren't working in a large company, buy hosting space from an ISP or hosting service and let them host it.
