Get Obsolete too. That album and Demanufacture are my 2 favorite albums from them.
You could check out Digimortal too, but that was kind of a downhill slope for them and the last album that Dino was on.
Archetype is a good album considering the bass player, Christian Olde Wolbers, took over the guitar parts. Still, I think Dino really helped make the Fear Factory sound, and since he left, the band just doesn't sound as synched up.
Transgression is probably my least favorite album from FF.