Alot of good suggestions have already been made. I'll add that I have been auditioning the Aiwa changer/MSB III with upsampling combo for about two weeks now. My comparison is to a Roksan Caspian CD Player. Honestly, I'm still not sure the Aiwa/MSB is better than my Roksan, even with upsampling; though instruments do sound more relaxed and natural. It certainly is cheaper - $650 vs. $1600. Transports are IMO a very important part of the digital chain. That said, you can't always judge a book by its cover. Don't mistake expensive for good; or inexpensive for garbage. The Aiwa was recommended by the Chicage Audio Society (don't remember if they are the originators or just propogated someone elses findings). At $90 it was worth the audition. After all, I've spent more on brass cones! I have spoken with Stan Warren about his mod to the Aiwa. It sounds reasonable. Rather than try to regurgitate something I only half understood, here is his number: 541.344.3696. He is great a guy and fun to talk to. Hope this helps. After I've spent more time with this combo I'll post my observations. One initial observation is that consumers must be attracted to lots of bright flashing lights. The Aiwa has them in spades - and you can't turn the darn things off!
Upsampling/Advice on Transport
After reading Sam Tellig's piece in the Feb. stereophile, I've decided that I want to take the plunge into upsampling via the MSB Link DAC. Unfortunately, my current CD player (Sonic Frontiers SFCD-1) doesn't have digital outputs, and so I will need to get a transport. His article implies that the quality of the transport is virtually irrelevant (he even used a Radio Shack portable and got the same results), because part of his suggested system is a Monarchy Audio Digital Interface Processor, which acts as a jitter reducer. So here is my question: in order to get the best sound, do I need to spring for an expensive transport, or will any consumer-grade CD player with digital outputs do the trick. Opinions?