I have found a supplier for dry ice and I can get some. But I have a few questions before I do my first DICE run.

1. What form of dice should I get? Slices, block, pellets?
2. What material of container would you recommend? Copper or alu?
3. What temps should I expect?
4. Is there any other ways of using dry ice in cooling that doesn't involve making container? such as chilled water with dice.
5. Any tips that you can give me on using DICE?