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HP has the HP Pavilion Media Center m8100y for $649.99.

1. Select Customize option and choose Intel(R) Core(TM) 2 Quad processor Q6600 (2.4GHz) [+$150]
2. Apply 30% off coupon code DT6030 [Exp 12/8] at checkout.
3. Purchase this item using Paypal and get $50 cash back

Final Price: $999.99 - 30% - $50 = $649.99 + Free shipping

Description:
• Genuine Windows Vista Home Premium (32-bit)
• Intel(R) Core(TM) 2 Quad processor Q6600 (2.4GHz)
• 1GB DDR2-667MHz dual channel SDRAM (2x512)
• 64MB NVIDIA GeForce 7500LE, DVI-I, TV-out, VGA adapter
• No Modem
• 250GB 7200 rpm SATA 3Gb/s hard drive
• LightScribe 16X max. DVD+/-R/RW SuperMulti drive
• 15-in-1 memory card reader, 2 USB, 1394, video
• ATSC-NTSC TV tuner with PVR, FM tuner, remote
• Integrated 7.1 channel sound w/front audio ports
• Norton Internet Security(TM) 2007 - 15 Months
• Microsoft(R) Works 8.0
• HP keyboard and HP scroller mouse
Final Price for this deal: $649.99