There are some smaller companies that build quality systems (with good warranties/tech support etc) That will offer much better quality. Most Big well known companies pay so much in overhead that they have to use alot of cheap crap parts but there are good alternatives.
This is our company, and there aer options like paypal credit/etc available for payment options and most likely we could build you a computer that is better than anything you will find on amazon at a better price that you will love. Domitus Computers (225)627-3727
If you want I can look up the website address but didn't know it off hand