The -3975: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487088&ignorebbr=1
The -2974: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487076&ignorebbr=1
Is it worth the extra $20?
The -2974: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487076&ignorebbr=1
Is it worth the extra $20?