Dell Inspiron 660 desktop, 3rd gen i5-3330, 8GB RAM, 2TB 7200 rpm HD, Nvidia GT620, Windows 8, Free ship $449.99

THE DELL 660 $449.99 OFFER HAS EXPIRED.

THE DELL EGIFT CARD $50-$75-$90 BONUS DEAL EXPIRED 12-28-2012.

This is similar to the $449 deal mentioned here (link).
But the hard disk drive has doubled from 1TB to 2TB and the video card Nvidia GeoForce 1GB GT620 has been added.

•PROCESSOR _ 3rd Generation Intel® Core™ i5-3330 processor (up to 3.20 GHz)
•MONITOR _ No Monitor
•MEMORY _ 8GB Dual Channel DDR3 1600MHz - 2 DIMMs
•HARD DRIVE _ 2TB Hard Drive, 3.5", 7200rpm, SATA
•VIDEO CARD _ Nvidia GeoForce 1GB DDR3 GT620
•OPTICAL DRIVE _ DVD+/-RW Tray Load Drive, 16X, SATA
•WIRELESS _ Dell DW1506 (802.11 b/g/n) WLAN half mini-Card
•Network Card Integrated 10/100/1000 Ethernet
•SYSTEM COLOR _ Inspiron 660 Chassis, MT, Black w/8:1 media card reader
•KEYBOARD _ Dell KB113 USB Wired Entry Keyboard - US
•MOUSE _ Dell USB Optical Mouse MS111
•SOUND CARD _ Integrated 5.1 audio
•PORTS _ (4 each) USB 2.0, (4 each) USB 3.0
•POWER _ 300W
•SPEAKERS _ No speakers
•OPERATING SYSTEM _ Windows 8, 64-bit, English edit
•PRODUCTIVITY SOFTWARE _ Microsoft® Office trial
•FREE SHIPPING

Technical information: Dell Inspiron 660 Owner's Manual [dell.com]

PRICE _ $449.99

Link to Dell 660 Deal [dell.com]

And you can save a bit more by purchasing Dell eGift cards.
Purchase Amount → Bonus Dell GC (combinable by phone or chat, not on line)
$300 → $50.00
$400 → $75.00
$500 → $90.00

Sign up for Dell's Advantage Loyalty Program, or use your existing Advantage membership, for an additional 10% off (rebated later in the form of Dell GC).

So, assuming that you purchase the Dell 660 with no options and no sales tax, you could buy a new i5 Dell 660 for $400 with $70 left over in gift certificates. I.e., the net cost of this deal is approximately $330.

Even lower with student discounts, military discounts, and other negotiated discounts. Lower still with rebates from cashback sites and from your credit card company.

One person reported negotiating a price over the chat line of $392, with tax he paid $415. With cashback rebates on the GC purchase (FW, e%%tes, Mr. Re%%tes), Dell $75 bonus GC, Dell Advantage 10% promo, and credit card reward points; the net cost of his deal might have been under $300. Yes, under $300!

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EDIT: Note: The original price was $499.99, reduced to $449.99 (as noted by several people below).