Amperage

To start off, I have a 4 channel amp powering my speakers right now with a 4 guage wire running to the battery (it was part of an 800 watt kit).  Now I'm installing a second amp into my car (the first time I've done this) and instead of running a second wire to the battery, I've purchased a fused distribution block to splice the power.  Both amps ask for about 60 amps each (totaling 120).  Just after the battery, I have the fuse block from just the 4 channel amp with a 60 amp fuse in it.  Should I purchase a larger amperage fuse to replace this one (due to the new amp) or is the fuse that's in there fine?

you're better off with 2 individual 60amp fuses, one for each amp, thereby if any one amp shorts or anything it will get cut off without disturbing anythign else. your single 60amp fuse will blow out if you run both 60amp amplifiers at the same time, and turn up the volume.

Mount the fused distro block in the vehicle back near the amps and purchase a resettable circuit breaker of 140 amp value to go up front and replace the smaller fuse holder that you have there.Top Secret, I can tell you but then my wife will kill me.

Would a high-amp ANL fuse work instead of a circut breaker (I plan on adding much more and would like a little room for more amps)?

yeah that would work too.

Get a bigger circuit breaker, it is there to protect the vehicle from a short circuit, it has little if nothing to do with protecting the amplifiers. A high ANL will work fine if you do not want to use the 200 amp breaker.Top Secret, I can tell you but then my wife will kill me.

Thank you very much for all of your help!