How much is a Cary 306 going for these days? I think I saw one for $2500, I think that would be an excellent choice.
The new Sony SACD XA-5400ES is $1499 new. Kal Rubinson from Sterophile gave it a sneal preview in the May issue. Apparently takes redbook data and uses the SACD noise shaper to sample at 2.8 Ghz. Redbook performance is said to be stellar. Too bad it doesn't have a digital input, I would buy one one the spot.