What do you think of these names?

Tyffany • Mom, wife & nurse...pregnant with baby #2!!
Last name is two syllables starting with K.  Rhoades was my dad's middle name, so will be using that for boy or girl.   My family all agree on a girl's name, Taryn Rhoades.  For a boy, everyone but me has said they like Isom Rhoades (pronounced I-sum).  Isom is also a family name on my husband's side.  Do they sound ok?