mcnobby:
I have been using 32mHz crystal oscillators on my projects for some time now without any crashes or ANY noticable heat from the processor.
I run my AVR boards at 22.1184 all the way to 29.952 without any problems. By the way, you don't need an OSCILLATOR to do this, just set your crystal drive from "low power" to "full swing" and it works fine.