Doepfer

Hey, I'm new to the modular synth arena.  I'm looking to get into it, and have looked 
hard at the Synthesizers.com/MOTM pairing vs. Doepfer/AS.  I know you can/should 
mix makes, but at this point, I am starting small and can't afford to buy a ton of 
modules.  I would really like to start with Doepfer with a couple of AS thrown in (I 
really like the CV potential of the Doepfer system).  

What really puts me off is the price of the damn case/psu.  $450!!!  I might be ok with 
that if I knew that would set me for a while, but after filling it up, you got to drop 
another 450 for a new case.  The one thing I liked the most about the Synthesizer.com 
system is the fact that you pay $300ish to get set up in power supplies, 50 for a rack 
mount and then when you fill out the rack, its just another 50.  the power supply can 
do something like 40 modules.  

So what I am looking at is getting a non-doepfer rack.  I figure the cck-160 from 
Vector electronics (found at Allied electronics, newark, etc) for about 150 would work.  
I am in contact with them now to see if it is indeed what I am looking for.  I'd like to 
go cheaper, but we will see.  if it doesn't work, I can always get two strips of 
aluminum and tap the holes myself :(

For power, I would pick up some bus boards from doepfer, and a Condor HBB15-1.5-
A+ for $60 from Mouser.  Not only would that be cheaper, it would give me a lot more 
room for expansion - more importantly, it wouldn't necessarily be a 450 dollar 
expense every time I need more space.  All in all I'd be out around 300 with room to 
expand by just adding another rack and bus board.  

Here's what I want to know.  Besides the obvious like outlets, switches, and fuses, is 
there anything I am missing?  Is there anything wrong with using a power supply 
capable of more current?  I'm sure there are others out there using there own more 
powerful supplies in other kinds of subracks; any pointers?