Sokka liking Toph: Eh, I don't know.
Toph liking Sokka: Cute, proably, and yea cute...
I'm guessing that Avatar will mess with our minds by giving little bits of Tokka here and there, but nothing major, and then at the end of the show they'll show some??epilouge where Tokka happens or something. No kissing, sorry, I just don't see Toph kissing Sokka, kind of becuase of age, but mostly becuase, ahh just not happening. And the whole "age thing", when people are in their teens, age matters (or at least it matters more) than when people get over their teens and into their 20's and 30's and such, that's why people have problems. Think about it, 12 + 15 = ew, but 23 + 26 = fine and okeedokee. Tokka is cute though, or at least Toph's crushing on him portion.