Yep, I certainly prefer Wavpack/Dualstream in this bitrate range. If you want the quality, and ability to transcode to other smaller/portable lossy codecs as needed with minimal artifacts, Wavpack/Dualstream certainly impress.
I'm still playing with the new Wavpack4 alpha, but it also seems to be transparent at lower bitrates than previous.
If you are using mpc 10, or Vorbis 10, I suspect you'll find either Wavpack lossy or Dualstream quite attractive at a similar bitrate and offer you other possibilities, although it is not clear from your post whether you plan to just use these files on a PC, or occasionally transfer them to other formats/devices.
I'm sorry I can't link to the threads for previous posts on this subject, but I typing this on a flaky Hong Kong airport terminal between flights.
As others have said above, you could also consider going lossless if you have the space, or a combination of lossy/lossless with Wavpack or Dualstream.
Have a play with them all. It's great fun, and a very educational experience.
Den.