You are quiet right - cheaper cases look and feel cheap, Anetc have a good reputation for building solid cases with good cooling. My personal choise would be the 902 as I have used one in the past for a build and cant fault if being solidly built.
At the end of the day in this price range all three are not bad cases - just personal chocie on looks
NZXT Tempest is a 902 wannabe
NZXT Lexa - looks like something out of transformers
i would chose the CM storm Scout case. it's in the same price range, has better build quality then the 902 (so i am told), also it kinda looks like the 902 in the front but has the better red LED fans. I'm just like you i also am finding it difficult to chose. the Lexa S may look like a Transformer, But a FREAKING cool one.
yeah and after looking at them i went for the antec 902 it was close tho cos it is expensive in comparison and i did look at the scout but i dnt like the red i know u can change them but... and also the inside was all grey which i dnt like
at the end of the day everyone has their own preferences... some like flashy gizmos and other prefer cooling performance.
I used to have a CM stacker before i swapped it for my current case (antec 1200) and the stacker used to make an awful racket because of the fan mountings caused vabration throughout the case - this was not helped by the fact the panels did not attach with screws but used a plastic locking mechanism.