The GE GDF610 (MSRP $499-$599) is what a dishwasher should be. In addition to getting dishes clean across our battery of lab-based performance tests, it boasts bottle washing jets, a sanitizing cycle, and the ability to wash a single rack at a time. We were especially impressed with how quickly it worked, and what a good job it did at drying.
It's also a good value: In stainless, it sells for as low as $533. Black, white, and slate finishes cost even less.