Two types of BETS conductors are reported. Needle crystals of lambda-BETS(2)GaX(x)Y(4-x) gave a series of new superconductors : lambda-BETS(2)GaCl(4) (T-c=7 K), lambda-BETS(2)GaBrCl(3) (8 K), lambda-BETS(2)GaCl(3)F (3.5 K), lambda-BETS(2)GaBr(0.5)Cl(3.5) (6.5 K). lambda-BETS(2)GaBr(1.5)Cl(2.5), which is a semiconductor at 1 bar, exhibited a superconducting transition at 8 K and ca. 1 kbar. Pressure and temperature dependencies of the resistivities of lambda-BETS(2)GaX(x)Y(4-x) closely resemble those of kappa-type BEDT-TTF superconductors. Many BETS metals with magnetic ions (Fe3+, Mn2+, Co2+, Cu2+) were prepared. Among them, kappa-type MX(4) (M=Fe, Co; X=Cl, Br) salts and theta-type Cu2Cl6 salts are metallic down to at least 4 K. The static susceptibility of lambda-BETS(2)FeCl(4) shows a characteristic magnetic field dependence below its metal-insulator transition temperature.