Heres a link that has some marbled snow bengals:http://www.bengal-cat.net/SNOW%20BENGAL.htm
Mine are brown marbled tabbies too, so I'm not sure that would help much. Can you post pics of YOUR cat so we can see his pattern? The marble pattern is really a modified version of the classic/blotched tabby pattern, so there are many domestic and pedigreed cats that have a similar pattern. The biggest differences would be 1.) the flow of the pattern. It should be stretched out horizontally (going from head to tail) and have no circular bullseye pattern in the center. 2.) its desirable for a marbled bengal to be tri-colored, which means that there is the background color, the actual pattern color, and a thick outlining thats darker than the pattern color. The cats in that link are tri-colored.
Bengals are active though, as everyone here has already said, but keep in mind that every cat will have thier own personalities.
My two (had them for two weeks now) are practically polar opposites, but their from the same litter! Both are kind of shy, but my breeder told me that was typical of this particular line as the temperament is more like the F-generation cats.
My girl, Dreamer, is VERY curious and LOVES to play, but she wont let you touch her much. I'm slowly getting through to her, but she's really stand-off-ish. Not that she bites or is agressive. She doesn't even hiss at me if I reach out to her. She just backs away a little, then comes right back as soon as I put my hand down... Unless there's food in my hand that is! LOL!
My boy, Ares, is SUPER cuddly! He's not so much a lap cat, but he thrives on human touch. Its strange, because even my siamese doesn't like being petted as much as he does. He even purrs up to Duke (my siamese) and will seek him out to nap with him (when he's not sleeping in a drawer that is).
They both have amazingly muscular bodies, and yes they CAN jump! Very athletic cats, which is cool because they've got my Duke to be more active too.