need someone to design (and maybe build) a pcb

[regis]

i would like a circuit that does the following . as to be as small as possible.

The board will control the power to a computer

the circuit should be capable of outputing (regulated)12v 6amp to the computer
it will take 3 sources . 2 12V batteries (A main 120Ah one and B 5Ah backup) + 12v DC from a 120v to 12v (10 to 20Amp) transformer.

charge the 2 batteries when on AC

stop the charge when done

having the battery take over if the AC power fails (with A having priority over B) and have the AC back when online again

B battery is always the last one to kick in ...if it does it bips.

display the batteries level on a LCD (2x16) .
Main information is the current power supply (ac or battery..if battery display the charge left and approx time left)
the button allow the user to switch to check the current state of the batteries when on AC....goes back to the main information after 10seconds)

send me a quote to contact at photossafe dot com