I’m a huge fan of Intense Cycles, for me they are one of the best marques in the business with a superb customer services department which makes you feel as though you’re actually part of a very unique brand. Small enough to receive emails answering specific queries yet large enough to ensure you’re never to far away from hands on suport in the form of a good reputable dealer.
Both the frames you mention are very good, the Uzzi however is more adaptable to meet various riding requirements. The SS2 is a play bike, the Uzzi is versitile enough to turn its hand to anything. I think you’ll not go far wrong with an Uzzi. It’s just my opinion but in terms of meeting your needs I think the Uzzi may be the way to go. Forks wise, I can’t really shed much light on the subject, I’ve seen all sorts but you can’t go far wrong with something like Rock Shox Lyrik 2-Step 1.5″ Air Forks, but then the beauty of the Uzzi is that with a 1.5″ headtube you’re options are wide open.
I hope this helps.