Ooops! Sorry, I'm from England - possibly a bit different in terminology but Futures encompasses everything to me...stock futures, forex futures, index futures, bond futures, commodity futures etc. I might be wrong...again
...but do you mean commodity futures?
Apologies if it seems I'm being pedantic but any pointers in the right direction of what to concentrate on would be really appreciated - after a promiing start my pitchfork profit has diminished to zero so far, but I've been mainly concentrating on forex which it sounds like is probably the wrong way to go.