my low voltage light trips the circuit breaker?

You need to check what other load is on that circuit. One lighting circuit could cover several rooms. If you are adding 32 x 10W lights, it seems highly unlikely that the fitting they replace could be rated at 320 W. Don't know what country you are in - so you would need to specify the voltage also! In Ireland or the UK it would be more usual to find a 10 A mcb on a lighting circuit in a domestic situation (and there would be at least 2 such circuits).

J
February 2008