  The collective mode frequencies in isotropic and deformed traps are
calculated for general polytropic equation of states, $P\propto n^{\gamma+1}$,
and expressed in terms of $\gamma$ and the trap geometry. For molecular and
standard Bose-Einstein condensates and Fermi gases near Feshbach resonances,
the effective power $\gamma\simeq0.5-1.3$ is calculated from Jastrow type
wave-function ans\"atze, and from the crossover model of Leggett. The resulting
mode frequencies are calculated for these phases around the BCS-BEC crossover.
