The CT-800 is, perhaps, the slightly better of the two tuners... but the CT-1010 ain't half bad. The one I have is actually one of the better sounding solid state tuners at my house (better sounding, e.g., than the TU-717). The vacuum tube Sherwoods leave 'em all in the dust in terms of sound
quality, but that's not on the docket for this thread, is it? ;-)
The entrails of a CT-1010:
DSCN6032 by
mhardy6647, on Flickr
I think that -- absent a T-2 or a CT-7000
-- a CT-1010 would be a fine match for a CA-1000. Wish I had a CA-1000, as a matter o'fact -- I like that generation of Yamaha integrateds a tad better than the next (i.e., the CA-**10 generation). The CA-**00 generation were slightly less frilly (no meters, no problem!) and better/more beefily built, it seems to me.
Not exactly on-topic (again!) but I think these two photos give a sense of the difference in "construction" values between the two generations of Yamaha components (and, please don't get me wrong, I like 'em all!)... The top photo shows the guts of the low-mid end CT-600 tuner and the bottom photo is the innards of the next model year's equivalent model (CT-610II). The difference in the two generations of
amps inside isn't quite as dramatic, but there's still some change in robustness of construction from generation to generation.
CT-600 (borrowed photo):
CT-600 by
mhardy6647, on Flickr
CT-610II:
CT610II by
mhardy6647, on Flickr