If your dashboard is Evox, and your chip is Xbit, why have you posted in the UnleashX section?
1. HeXEn (Google Heimdall's Xbox Engineering Disc), or Slayers, or AID
2. Depends on your Xbox version, but one of the two X2.5035 variants would be ideal. BIOS Checker can help you find out what's on there. However, to program the Xbit you need to connect it to your PC via USB and a separate Xbit-specific USB programmer board, so none of the boot discs will help you. Have a look at
this table and
these pictures.
3. 2TB with a SATA-IDE adapter, but only some adapters work on an Xbox.