I don't care much about hard drive space, I have my own wireless adapter and sound card, and I don't plan on upgrading parts in the future.
All of them have Vista Home Premium [64-Bit] with free upgrade to Windows 7, integrated audio, DVD burner, Ethernet.
Or if you have any suggestions on other models let me know
HP Pavilion Elite e9105z
AMD Phenom X4 9650 [2.3GHz]
6GB DDR2 [800MHz]
640GB [7200rpm] SATA
1GB ATI Radeon HD 4650 [DVI, HDMI, VGA]
$589.99 [-$30 discount] + $54.57 tax/shipping = $644.56 - $29.50 Bing Cashback = $615.06
LINK
AMD Phenom X4 9750 [2.4GHz]
8GB DDR2 [800MHz]
750GB [7200rpm] SATA
Integrated Nvidia Geforce 9100 [DVI, VGA] [256MB integrated shared graphics memory. Up to 1407MB Total Available Graphics Memory as allocated by Windows Vista]
Wireless LAN 802.11a/b/g/n
$589.99 + $68.66 tax/shipping = $658.65 - $14.75 Bing Cashback = $643.90
LINK
Intel Core 2 Quad Q8200 [2.33GHz]
4GB DDR2 [800MHz]
500GB [7200rpm] SATA
1GB NVIDIA GeForce 9500 GT [DVI, VGA]
$549.99 + $70.63 tax/shipping = $620.35 - $13.75 Bing Cashback = $606.60
LINK