Trade help! Involving Prado or Longoria.....?

A manager in my league is seeking a 3b. He wants either Prado or Longoria. I'm not very thrilled about parting ways with either... I could use some help at SS and I need to get rid of some of my OFers.. (mccutchen, rasmus, joyce, francouer, cruz(DL), torres, maybin... ryan roberts and prado can be included in my OF) he just offered me berkman and chone figgins for longoria. I already have howard at 1b so if i did this, id need to open up my util for berkman or stick him somewhere in my already overloaded OF. what to do??? please help.. thanks!