needing. wanting. loving. (glass coffee tables}

I am currently on the hunt for the perfect glass coffee table for my digs...
It's honestly so overwhelming with so many different choices, especially when I am dying to find the perfect one. Since my apartment is deprived of space, glass is the perfect finish because it doesn't feel as heavy. However, I am desperately in love with black and brass finishes like these two living rooms have.
I love the looks of these tables, so I am inspired by them but wanting them with glass. 
Here are the ones I am obsessed with right now...
1.pretty brass and glass porterandpunk coffee table
2.hexagonal Horchow coffee table
3.This double level Worlds Away coffee table
4.a pair of black and glass coffee tables from Hayneedle