Matt, I think Quad would be an ideal choice for you! They sound smooth, natural and warm (compared to say, Cyrus). I would recommend buying a used 405MK2 (not MK1) and then now or later going for the Netaudio MK3 upgrade with dual mono PSU and BBOPA627 op amps. It's a superb power amp for the money and you can do it in two stages.
There's lots of good preamp choices and passives work well with it. I've found that an active works for me, the AVI being a stunning bargain on the used market. The 33 can be rebuilt by Netaudio and the 44 is apparently great in it's original form.
If the 405 doesn't float your boat, save for the Quad 909. It's worth every penny and I can point you to one going for £600. With the 99CDP it sounds superb with the 11L. Really superb.