Are housing prices finally rebounding for good, or are recent upticks just seasonal gains, with more home price pain to come? Market watchers are weighing in with their pluses and minuses. But most say any recovery in the housing market will be uneven and slow. "We're out of the nose-dive, but I wouldn't build any great expectations for prices soaring," said Lanny Baker, CEO of ZipRealty Inc. (ZIPR) "It's going to be a long slow trudge." Some