Best way is through PayPal Credit. You buy your parts at almost anywhere but Amazon, they are cheaper overall, build your pc yourself. Anyplace you buy a custom built has overhead, secretaries, build costs, labor etc that's going to be charged into your price. You'll get a $500 pc that'll cost you $1000 before interest charges. For $1000 you'd have better luck with a pre-built from Dell over a custom pc.