, JohnAskew wrote

Building your own PC's is the MOST affordable route, but not for everyone. I'd use NewEgg to look for components if this is your choice.

I guess you order PCs online to be shipped. Dell is a common choice...

@Skeptical:

I'm starting to feel like a CL-pimp, but you can get some great deals on Craigslist on pre-owned Dell computers, which allow transferring of service warranties if that's a concern.