This deal has ended.
Buy.com has a refurbished model of the Magellan Roadmate 3000T Compact Automotive GPS System for only $175.99 after a $40 mail-in rebate valid through 8/31. This has a 3.5" LCD display, voice-prompted navigation and comes pre-loaded with maps of North America and Canada. This sells for $300-$500 when new. Plus, new customers can use this $10 off coupon or new Google Checkout can get a $10 off discount (you can't get both). Shipping is free and there is no tax (except CA, MA, MD, TN).