This deal has ended.
Today only, Buy.com has a refurbished model of the TomTom One XL GPS System (model# 1S00.084) for $179.99, after a $50 mail-in rebate. Featuring a 4.3" LCD toiuchscreen and voice-prompted navigation, it also comes with maps of the US and Canada pre-loaded on its memory card (with millions of POIs: ATMs, fuel stations, hotels, restaurants). New customers can use this $5 off $100 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).