Well thanks again to all who posted!! It has been very informative reading all of the remarks on different components. After much consideration and reading other reviews on mtbr.com , this is what I have decided on:

1. 2003 Avid SD7 Brake kit
2. XT RD
3. XT FD
4. XT shifter pods
5. XT Casette

Thanks again guys and hopefully with this setup my bike will become the animal it dreams to be.