For your budget, you might actually be better off with a DAC and an inexpensive DVD player as a transport. The MHDT DAC's have been getting a lot of good press, although I have yet to hear one personally.
Otherwise, I can always recommend a Music Hall CD-25 (which is way under your $1000 limit used). It's a unit that sounds very good for the price, and would be good for an office system. Or, maybe an Oppo BDP-83SE. I have the regular (non-SE) version, and it sounds fine with CD's. I hear the SE version sounds better with analog outputs. It also has the benefit of playing anything that's round and shiny, regardless of format.
Or, consider a used Arcam CD23. They sound good and are built like a tank. You might also be able to find an older Classe CD player. Even more options: Some of the offerings from Jolida, Cambridge, or Rotel.
I suspect any of the above units would work just fine for your purpose in the office.
Michael
Michael