A Wadia 830 can sometimes be found in your price range, but keep a sharp eye out because they usually sell about 4 seconds after they are listed.
Also, if you are looking for true balanced design, be sure to read the fine print in the owners manual or research the product on the internet. AES/EBU XLR terminals does not necessarily imply a balanced circuit. Some put them there for convenience only, and they are unbalanced.
(Sorry if you knew all that already)
Cheers