Bob is correct. Go for the current version and as far as ancillary equipment, I don't think anything will be overkill with the Harbeths unless it's something specifically for low bass.
Harbeth Speakers
I am downsizing my system from Audio Physic Virgos to Harbeth mini-monitors Could an enlightened audiophile please tell me the difference between the P3ESRand th eolder HL-P3ES-2? In the same breath, would driviing the speakers with CJ MV55 and 17LS be overkill? I have a Linn Classik. I expect the latter would do the job nicely.