Until Sony and Yamaha deliver on their promise of delivering HD radios this fall, there are basically two serious HD radio contenders: The Sangean HD-1X and the Day Sequerra professional model range. The Sangean (under $250) is so popular its production is actually sold out until mid July right now. The Day Sequerra product line starts at $3,000 and up. Even at that price, they've already sold over a 1,000 sets of their $5,000 model! Apparently the new BMW model line also includes HD capabilities.