Do you generally wait until April to file if you know you're going to owe a little bit of money? My wife and I had a bunch of job changes about half way into the year and decided to wait until the new year to adjust our withholdings, so we owe about $400 on 2007 taxes... any reason why I should be in a hurry to file? Seems like I might as well make a little interest on the money before I send it off.