Last week, I built basically the same system that you are going to and I also wanted quiet. Here is what I have: Enermax case CS-A1QX-02, P4 1.6a, GeForce3 Ti200, IBM HDD. The Enermax case comes standard with an Enermax 300W power supply. The case also comes as a model CS-A1QX-06, the only difference being the color scheme. Both cases are light beige with dark navy blue trim. I have to say that this is one nice high quality case and good looking. For extra cooling I added a PC Power & Cooling Silencer case fan on the back as an exhaust. The Retail Intel P4 fan runs very quiet and is temp. controlled, running faster if it needs more cooling. The Enermax PS in this case has 1 fan that is temp. controlled, running faster if needed and is very quiet. The Silencer case fan runs very quiet also. The loudest fan was on the GF3, but I replaced it with a standard P2/3 CPU fan and run it at +7 volts to slow it down. My system is very quiet and all I hear is very slight fan noise, while the case stays very cool. Check out the case at newegg, they have both models for $50, a super buy.