@Max Headroom. Yes the Hardware seems to be an Issue, but let me tell you. Just for fun., you don't need the Monsters, the others tell you about.
The Graphic card for axample. If you use it exclusivly for rendering a GTX 750Ti or a 960 will work for cheap money. You can conect a monitor on a second card or an on board solution. That is, what I'm doing, when I want to do smth else. Same with actual RAM. The problem here isn't DAZ. It is mainly the OS you use. As soon as you use Win10 you will need at least 16 GB, but with a lower version like Win7 or 8 you can get away with 8 Gigs. But didn't expect grainfree 4K images. XD I use a Machine that was build mainly for skyrim and Sims4 since. And it works just fine for me, as a render machine as well. I do the nice stuff, when I'm not at home or in the night, so I can do the higher quality stuff too. And as soon as you discover blender, things will change again.
A friend of mine, sneezes at Gaming PCs like Alienware, b/c she needs at least 16GB VRam for some "simple" animations done in Blender.