Are these of any interest? The new Marlin P. Jones catalog has a bunch of linear power supplies that might be good for big cabinet users. Or are there caveats...?
+/-15v @ .4A = $11
+5v @ 6A & +/-15v @ 1A = $85
+5v @ 3A & +/-15v @ 3A = $107
They also have good deals on white & blue LEDs ... ;)