I would recommend a UK site called www.easymultimedia.co.uk
which provides good support on CD duplication with software. It performs all important tasks for you like CD duplication with Standard or slim line CD Jewel Cases, CD duplication without Packaging, wrapped and supplied on Spindles, CD duplication With Cardboard Wallets or Cardboard Sleeves etc. at very low cost. Currently they are offering a 1000 with jewel cases for about £500. Just check this site out for more details as it might be useful and beneficial tool for you as well.