The Vocal Sampler sound library by Diginoize is now available for only €16.00 EUR (about $20.82 USD). This library includes 230 high quality samples that are completely royalty free. The samples from this pack were drawn from other Diginoize vocal packs, so you a sure to get plenty of variety for your money here. Listen to the demo to see if this is something you could use.
You can read more about this sampler pack here: http://www.diginoiz.com/?q=urban-loops-line/diginoiz-vocal-sampler