Yes, the SP's are listed as such in Beckett. As far as value goes, it all depends on the SP#, player, series, etc. If it's a base SP I wouldn't expect to get a whole lot more than the regular base card unless it's 1/1 or something to that effect. However, if there is let's say, an SP Patch version of an otherwise regular jersey card, it's possible to get a significant amount more for the SP.
Hope that is what you are looking for. Also, I don't want to act like the police or anything, but next time you have a question, perhaps you should post it in the Hobby Talk section as opposed to the box breaks section.
Currently collecting Darren Helm, Nick Lidstrom, BJ Raji, Aaron Rodgers, Greg Jennings, and Clay Matthews