Joolz,
For details on the CM Di, see http://www.classik.com.
Note: The transport, tray and laser are the same as the standard CMS, but the processing is enhanced, partly derived from Unidisk 1.1 technology. Dolby Prologic II processing is available for all sources (including external). Component video output available, plus 2 additional optical digital inputs. No direct SACD support (but you could use a dedicated SACD player as an auxiliary input - the CMS & CM Di CD player will probably sound better than a mid-range SACD player playing normal CDs).
It should sound great with Tukans - I have Katans which supposedly replaced the Tukans, and they match well.
You'll find a subwoofer makes a significant difference. I have the Afekt, lowest of the range (and cheapest!). An active sub, a bit smaller than the Sizmik, but uses similar technology. You can adjust its phase, volume, and low-pass cutoff to blend with your speakers and room accoustics.
Shop around on the web for the best prices.