Diapers.com is offering a deal with the purchase of a car seat. You will get $25 worth of credit when you use the coupon code: YAYGEAR25
This brings the price down of the Britax Marathon 70-G3 model to $192, while Amazon has it for $215. The Britax Marathon is a great carseat for infants and toddlers. The ratings on Diapers.com and Amazon are great.