Can you provide links to those two PCs please?
If I were to choose between them, I'd go for Novatech any day.
If you want the best value for money, build it yourself if possible, or get a Dell. I can provide a link to a Dell XPS, that will probably better anything that most other manufacturers can offer for the same price. With those links, I can compare it to a similar Dell & see if it's indeed superior to either. G