$235 (before $30 rebate): his radeon x1950pro agp http://www.newegg.com/Product/Product.asp?Item=N82E16814161070

$217 (before $50 rebate): bfg geforce 7800gs agp http://www.newegg.com/Product/Product.asp?Item=N82E16814143046

$180 (before $30 rebate): xfx geforce 7600gt agp http://www.newegg.com/Product/Product.asp?Item=N82E16814143046

$125 (before $20 rebate): xfx geforce 7600gs agp http://www.newegg.com/Product/Product.asp?Item=N82E16814130076

$125: sapphire radeon x1650pro agp *recommended* http://www.newegg.com/Product/Product.asp?Item=N82E16814102057

$105: sapphire radeon x1600pro agp http://www.newegg.com/Product/Product.asp?Item=N82E16814102038