Hi Matt
Pushing your budget - but what about the Marantz SA-15S1 (and the platinum finish is neat!) - A very new player so I haven't heard this yet (rec. about £1100 less any discount) - but it is well reviewed... I have an old (about 15 years!) CD11, which originally had a rec. retail of about £2.5k, fitted with a Trichord Clock 2 upgrade...
Not worth upgrading the 72 if you don't like the Arcam house sound. One DAC I have really liked (especially with Jazz/female vocalists) is the Meridian 563 DAC.
The eventual appearance of the Cambridge Azur 740C (£500? or?), avoiding the What Hi-Fi hype, may be interesting... with 2xAD1955, 24 bit upsampling, balanced XLR output...
Speakers... so much choice... but don't rule out the B&W 800 series - the 805S is a stand mounter but should be agile and finely detailed (this only came to mind as I remembered that I heard the 563 DAC through the previous range B&W 705 - very believeable). Over the years (as my hearing has faded!) I have come to prefer stand mount speakers - they just seem to breathe more easily, have a larger 'sweet spot' and sound faster (due to less baffle, or the stands isolating the units from the floor, greater cabinet rigidity, or..). It sounds corny to describe... I generally hear more detail in the layered percussion of, say, a Rippingtons CD from 'bookshelf' speakers than (same price) floorstanders.
Good grief I'm rambling on a bit here...
Cheers, Ken.