I'm curious as to what all the options are for the external crystal/resonator! There has to be at least 50 different options! I am using a 7.3728MHz external clock. What should i set for the fuse? low freq, medium freq, or high freq? And what does the "start-up time: 1K CK + 4 ms; [CHKSEL...]" mean? I am assuming it is how long it takes to start executing code after power on...