I used Amazon Japan recently and found it to be excellent, as long as you are buying the CDs new directly from Amazon, not from re-sellers. I believe the prices are better than on CD Japan.
The site is accessible at the bottom of the Amazon US screen. Then, once you get to Japan, there is a button in the upper right hand corner of the screen to translate into English.
The individual CDs are shown with their cover in English, which should identify the performer and the music. Prices are in yen, but you can easily translate to dollars.
If you need anything else translated, translate.google.com works reasonably well.
S/H is about $4.50 per disc. I had a large order of CDs arrive three days after I submitted the order.
