I have a 2 year old (2002) Dell Dimension 8100. The rear case fan (only fan) has ended its own life. I went to Dell to purchase a replacement and was robbed of $22 for what should have only cost about $8. However, one month later I have still not received the fan and have been forced to start looking elswhere. Problem is, I am not sure where to look. Does anyone have good resources for sites that tell you what fans are compatible with certain systems (and possibly sells such fans)? Or has anyone already purchased a good replacement that they would suggest? Any assistance would be appreciated. Thanks.