I agree with BDragon's line up, coz I also think that J.Zanetti in the LB position would be great. But I am not sure if Cambiasso will retain his place against Roma, coz Mancini might replace him with Davids, with Davids instead playing in front of the defence. Did we play with a rhombus midfield ? In other words - kinda diamond midfield ?
I guess we will play with kinda 4-4-2, may be stg like this (similar to BDragon's):
--------------------- toldo ----------------------
zemaria---cordoba-------burdisso----j.zanetti
v.meyde----veron---------dav/camb--stanko
--------------martins-----adriano--------------
And I won't be dissappointed to see Recoba there as well, but hopefully Vieri won't start this game as well.
I did watch Real-Roma. Roma didn't play an attacking game, but what I got scared was Roma's counter attack game and whenever they came forward, they did well. Therefore, we should really defend well when they attack, and may be it won't be bad to risk by playing Burdisso as well.
Totti, Cassano, Mancini, De Rossi all did very well whenever they came forward.
I guess it would be great to have ze maria and j.zanetti in the right and left back positions as both of them are really good. Just as Jimmy said abt Ze Maria, that he's too good to be a bench warmer. If Mancini plays the duo in the LB and RB positions, I do think that there's a very good chance that they would do very well there. I am hopeful on that.