Trying to find a quality remote controlled power supply. VESA or other interface. True USB would be nice, GPIB or serial okay

Models that look good:

AFAIK, within Agilent:

The large, rackmount units are originally made by HP
The smaller, benchtop units are originally made by Agilent. Two series:
- E3600 series: blue display, current series as of 2014
- 66X: LCD display

Vendor	Model	# outputs	Output	Max watt	Interface	Form factor	New price
Agilent	6613C		50V, 1A		GPIB	Benchtop		$475
Agilent	6622A				GPIB	rackmount		$200 shipped
Agilent	6627A	4		40	GPIB	3U		$750
Agilent	6651A		0-8V / 0-50A		GPIB	rackmount		$250
Agilent	6634B		100V 1A		GPIB	rackmount		$585
Agilent	6633A		0-50V, 0-2A		GPIB	rackmount		$325
Agilent	66319D		0 - 15V 0 - 3A / 0 - 12V 0 - 1.5A DC		GPIB	benchtop		$800
Agilent	N5743A		12.5V, 60A	750	GPIB, ethernet, USB	rackmount	$2611	$2000

Agilent E3600/E3640

Vendor	Model	# outputs	Output	Max watt	Interface	Form factor	New price
Agilent	E3631A	3	1: 6V, 5A 2: 25V, 1A 3: -25V, 1A	80	GPIB, serial	Benchtop	$1383	$1400 (just the deal you are looking for…)
Agilent	E3632A	1	15 V, 7A or 30V, 4A
Agilent	E3633A	1	8V, 20A or 20V, 10A
Agilent	E3634A	1	25V, 7A or 50V, 4A
Agilent	E3640A	1	8V, 3A or 20V, 1.5A	30	GPIB, serial	Benchtop	$790	$250 (local pickup)
Agilent	E3641A	1	35V, 0.8A or 60V, 0.5A	30	GPIB, serial	Benchtop	$790
Agilent	E3642A	1	40W, 8V, 5A or 50W, 20V, 2.5A	50	GPIB, serial	Benchtop	$842
Agilent	E3643A	1	35V, 1.4A or 60V, 0.8A	49	GPIB, serial	Benchtop	$842
Agilent	E3644A	1	8V, 8A or 20V, 4A	80	GPIB, serial	Benchtop	$1028
Agilent	E3645A	1	35V, 2.2A or 60V, 1.3A	78	GPIB, serial	Benchtop	$1028
Agilent	E3646A	2	8V/3A or 20V/1.5A	60	GPIB, serial	Benchtop	$1094
Agilent	E3647A	2	35V/0.8A or 60V/0.5A	60	GPIB, serial	Benchtop	$1094	$450
Agilent	E3648A	2	8V/5A or 20V/2.5A	100	GPIB, serial	Benchtop	$1320	$500
Agilent	E3649A	2	35V/1.4A or 60V/0.8A	98	GPIB, serial	Benchtop	$1320	$400

Power Supply