Hi Russell, you have what can be a killer cdp in the 306/200 as it has the best starting components to maximize with already:
8 x PCM1704 R2R ladder multibit dacs ("bit perfect" Redbook conversion)
PMD200 last of the HDCD chips from PMD
VAM1202 a very good laser/mech from Philips.
If you know a good tech that can perform these I/V stage and buffer mods (around $300-$400) you will have Redbook (PCM) replay that would be as good even better as anything costing big bucks.
http://www.diyaudio.com/forums/digital-source/227677-using-ad844-i-v-77.html#post4700627
Cheers George