Simple Bankroll Question

[JDMcNugent7]

SInce i havent played Cash tables in forever and am now going to devote myself to get better at them, i was wondering what limits i should be playing. I have around $500 on pokerstars so what limits does that leave me to be playing ? Is it like 300 BB, 30 min./max. buy ins for that table ? what i dn ?
It's NL by the way. and by min or max buy ins for the table i mean the minium and max. u can sit at the table with.