Neet - coming from stocks and options myself initially and moving to futures, here is what I would be prepared for:
1) Much quicker 'action'.
2) Leverage available for very little $$$.
3) I think it's easier to focus on just a couple markets vs. a ton of socks.
4) Very easy to hit the flatten button on positions. For me, letting a trade run was probably the most difficult when it takes seconds to hit the flatten button and be out of a position.
5) Depending on how you trade #4 can happen easily due to the minute-to-minute 'noise'. This may be a non-factor for you though.
6) I personally do not hold futures positions overnight. Since they trade round the clock, too much can happen while I am sleeping and for me, it's just too much to think about while trying to sleep.
7) Better tax treatment, just in case you did not know that.
8) More stimulating and 'fun' for me. While the rides can be extreme at times, this type of trading better suites me. You'll find out pretty quick if you like the action that futures provides.
Good luck and welcome to club!
