Through 6/2, Buy.com has a refurbished model of the TomTom One XL GPS System (model# 1S00.084) for $149.99, after a $50 mail-in rebate. That's $16 less than April's posting of this model. Featuring a 4.3" LCD touchscreen and voice-prompted navigation, it also comes with maps of the US and Canada pre-loaded on its memory card. 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).