Newbie has some questions

["Dean L.Hedin" <dhedin-at-vsi.net>]

Hello,

I am approaching completion of my first 3-axis router table
and I have a few questions regarding the setup for usage
with EMC.

Limit/Home Switches:

The docs that I have read indicate that the limit switches 
are all wired in parallel.   Am I correct in assuming then that
EMC will only know that a limit has been hit but will not know
which limit was hit?

Likewise, the home switches,  if they are all wired in parallel
then how will EMC know that all three have been closed
to determine that the home position has been reached?

Does EMC move towards home one axis at a time checking for 
closures and then back off that axis until a switch opens and then
attempts the the same on another axis (until it reaches home)?


Coordinate System/Motor direction:

I've seen an earlier post regarding how the coordinate sytem
is layed out.  Sounds like a standard "right_handed" xyz coordinate
system is required.  This being the case, are there options in the 
configuration to alter the sense of direction for the stepper motors
so that I may achieve proper direction for the actual orientation of the 
motors on my machine?

Cutting Speed

My setup is rather simple, using stardard threaded rod for the lead screws,
and I want to keep cutting speeds low to avoid loosing steps.  If EMC is
interperting a g-code file that specifies a given feed speed, will it know to 
"truncate" the feed speed for my setup?

Probing:

It sounds like the probing feature is kinda new.  What I would like to
have is some kind of dialog that asks me for a range to probe through
(X,Y,Z),  a resolution to probe at, and the dimensions of an unworked piece
that will ultimately be machined.  I let it run, come back and I am left with 
a usable fragment of G-code.  

I suspect this probing feature does not yet do all of this.  This is OK, I am
a pretty good Linux C & C++ programmer.   I feel confident that I can write
a piece of code that can do this.  Where do I start?  What does the probing 
feature do at this point in time?

I intend to use an led/photo transitor pair for the probe switch.  I will 
stradle these across a small teloscopic pair of brass tubes with proper
holes to interupt the light.  I will attach a piece of silicon rubber to the
end of this that is the shape of the bit.  Sound good?

I am sure many of these questions have been asked before.  Any
help much appreciated.

Dean