If you have ESPN's Insider, check out the Sports Bash interview with NFL insider Michael Smith. He does an excellent job analyzing the Colts performance in free agency.
ESPN insider is freaking expensive (about 50 for the year), but comepletely worth it. Combined with the ESPN toolbar, you can have instant access to a ton of info about your favorite teams, as soon as it's available online. They do a nice job podcasting the key segments of their radio show throughout the day, so that when people are talking about the Horseshoe, you can hear it without having to weed through hours of pointless banter about T.O. or Tom Brady's illegitmate children.