Rake consideration

[Insistent_]

I am playing 4-6 handed with an aggressive semi-loose style of play.
Per hour - how much in $$ would I pay in rake APPROXIMATELY at:
1/2 NL?
2/4 NL?
3/6 NL?
5/10 NL?

Just give some numbers if you have a good idea. Standard rake levels for the industry....

And more to the point - at what level would you think it would be a wise idea not to think too much about rakeback but just table selection? For example... I am a one table:er myself and me strength is reading and playing specific opponents and I am thinking about playing a 2/4 game with 0% rakeback despite the fact that I have 50% on another site - just because it seems juicier. Do you think I am out of line with this type of reasoning?

At what level will the rake start to become low compared to the blind?