SHORT STUFF: Sadly, Dwight Howard has gone from the All-Star center whom everybody wanted when he played for the Magic to the chemistry-wrecking big man whom the Houston Rockets couldn't unload at the trade deadline. I've said it before and I'll say it again: The grass may seem greener on the other side of the fence, but usually it's just a bunch of mowed-down weeds. … It was an emotional and poignant story on Thursday night when Dale Earnhardt Jr. won a Daytona qualifying race on the 15-year anniversary of his father's death on the same track. The official name of Sunday's race is the Daytona 500, but because the of what the Earnhardts have meant to NASCAR for two generations now, maybe it would be more appropriate if we started calling it the Daletona 500. …