I just bought a 902, not built it up yet but the build quality is great for the price, my mate has a 900, dont remember it being too load. Currently I have a Thermaltake Soprano thats four years old, now thats loud but for £50 and its still going strong you cant argue
As jbakerlent have mentioned already, the fans on the Antec 900 are adjustable (L, M, H).
We are actually have the Antec 902 on sale on newegg for $90 after rebate which is a very good price for a Antec 902. Antec 902 is like a small version of an Antec 1200 which is also an upgraded version of Antec 900. Please let me know if you have any questions regarding the Antec nine hundred.