[TenTec] Station power supply??

[denton]

A bit off topic but...
I am thinking of revamping my station's power supply setup.

I have an Orion, Omni VII, 2 dual band uhf/vhf rigs and assorted item that 
use 13.8 vdc for running and/or charging.
I currently have 2-Astron RS-35M and 1 20  amp Astron power supplies.

I also am running a 3000 watt ups with a ton of backup batteries....this 
feeds just about everything in the shack.

What I am thinking of doing is eliminating the above Astrons, getting a 50 
amp plus power strip to fire the station and various sundires, or getting a 
series of switching power supplies.

Qth is very quiet on man made noise.

I am aiming for efficiency, with no rfi from power supply setups, from what 
I have read, the switchers are very efficient, but still generate a bit of 
rf hash....I might be wrong on this.

Any suggestions or observations?

Thanks in advance de Denton, WB7TDG