tkrussell - Thanks for spending your time to help me.
Not following you here. Typically a 320 amp meter would feed two 200 amp panels directly. Sounds like you want to feed one panel then feed the second panel off of the first. This will not give you a 400 amp service, only 200 amp. you need to explain this further, as I think you are off base.  No, the first 200A load center (inside the house) will be either back to back with the meter base or within a foot of the meter base and fed from the meter lugs.  The second panel (also inside the house) will be at the opposite end of the house.  So I want to go from the meter lugs to a 200A fused disconnect (also inside the house but not the first load center) that is within 3 feet of the meter base and within 2 feet of the first panel.  From this 200A fused disconnect, I want to go to the second 200A load center.
See Page 13 of this catalog for the LA area:
http://www.milbankmfg.com/Products/C.../PDF/LA-MS.pdf
I would use a 320 amp meter with 2 - 200 amp breakers built in.
1)  
Both need to be in one location, either inside or out.  That is one of my questions:  Would this setup be considered "in one location"? 
Also, if the panel is farther way than a few feet, the feeder must have a disconnect with fuses or circuit breaker at the point of entracne into the building.  This is why I was first going to a fused or breaker disconnect - to meet the requirements and also to protect the wire running to the second panel.
See above answer. Breakers built into meter solves the problem. Need to consult with utility to learn what brand and type of meter socket they will allow.
4) Are the cables from the meter base to the first load center and to the 200A disconnect required to be enclosed in conduit?  
If your referring to SE cable, then no, does not need to be in conduit.  I'm not sure what other type of cables would be going from a meter base to a load center but yes I am talking about the SE cables.  I was under the assumption that they had to be enclosed in conduit, which I plan to do, but was wondering how hard it would be to enclose copper SE cables in conduit.
When someone says cable, sometimes they mean the wire that is pulled into conduit, so now I know you mean SE cable. SE cable is allowed to be installed without conduit, unless a sleeve is needed to protect from physical damage. Exactly what you need to run is called SER cable, it will have a total of 4 wires, 2 hots, one neutral, and one equipment ground.
5) Are the cables from the 200A disconnect to the second load center required to be in conduit - they will be running through the attic.  
Again, If your referring to SE cable, then no, does not need to be in conduit.  I'm still can't imagine what other cables would be going from a 200A disconnect to a 200A load center but I was indeed talking about the cables supplying power to the panel - I didn't want to get into an argument about whether or not these were considered "SE" cables since they are actually feeding a sub panel.
6) I will also entertain any ideas/suggestions concerning issues I have not have addressed.  
Honestly, if you have never done a 400 Amp service, I highly recommend that you hire an electrician to install it. He can have it installed completely in a few hours, you will be working on it for days, and I almost guarantee it will fail inspection. There still is the issue of grounding the service and bonding of metal piping systems in the home to discuss.  I have all the time in the world - well if you ask me - not my wife.  She wanted the house and to be living in it yesterday.  If I do it right, which is what I intend to do, I can't imagine why it would fail inspection.  However, I intend to have a licensed electrician look it over when I consider myself finished.  I did not want to bring up grounding issues until I got answers to these questions.
Since the wife thinks you have the time, have fun. Are you done yet?
Again, thanks for taking your time to help me.