Zero G, summer sale till end of June (check out the vocaloids).

http://www.zerogdownload.com/store/storefront.php

Aside from the samples, if you are not aware of the vocaloids, you may want to check them out.

May not be practical to replace real human voice, but I find them usefull to practice vocal arrangement and mixing.

Do take note.. the vocaloids on offered are of the oldest version (version 1) .. the latest being version 3. Even though oldest, I still prefer their voices, especially Miriam (Miriam Stockley's samples).

There are some discussion burried in the forum in working with Sonar.. may or may not work with Sonar rewire 32 bit. Will definately not work with Sonar rewire 64 bit.

The way I got it to work is to use Reaper (Reaper 64 bit talks to Vocaloid rewire 32 bit!). I did most work on X1, then export the wave file to Reaper to rewire with the vocaloids.

Here are some covers for fun with the vocaloids :)

1) http://youtu.be/mKHx__mIV2E

Band In A Box for the backing music, added a real sax track.

2) http://youtu.be/xkxHmCjBul4