I just bought the model below. JC Whitney has some great prices and the $100 rebate coupon. Not bad. Check out the prices on there.
http://www.jcwhitney.com/autoparts/Product/Pr-p_Product.CATENTRY_ID:2016690/c-10101/Nty-1/p-2016690/Ntx-mode+matchallpartial/N-10101/tf-Browse/s-10101/Ntk-AllTextSearchGroup?Ntt=gps
http://www.jcwhitney.com/autoparts/Search?catalogId=10101&storeId=10101&sku=gps
