you could play 4 tables of $200nl, assuming you earn 3BB/100...
If you get 50/hands a table/hour thats 200 hands an hour, so 6BB an hour.

1 BB = $4. * that by 6 and you're looking at $24 an hour, which ain't too bad.

That doesn't even include rakeback/bonus etc. But I think 3BB/100 at 200nl is really solid.

(Can anyone verify that this is correct)