Logic level MOSFETs are definitely the way to go. Most recently released MOSFET's are logic level and are spec'd (for Rds ON) at both 4.5V and 10V gate drive voltages.

There 2 issues though with an N-Channel MOSFET. The load cannot be ground referenced and has to be on the high side - may or may not be a problem depending on the application.

Secondly, they are OK to be driven directly from the MCU if you are just turning them on (and/or OFF). For PWM type applications, they MCU cannot supply the current (and voltage) to efficiently overcome the gate charge/capacitance. With many applications running in the many KHz to MHz region (for reasons of efficiency), gate drivers become a necessity.