Most beatable: Limit vs. NL

Greetings,

I have been playing poker (online) for the past year or so. I've started w/ limit then moved to NL games (mostly on PP).

I have a great job that brings in good money, but my wife thinks that I play pretty good poker (I seem to be able to call WPT and WSOP games quite well). I also love the game.

Due to various reasons (job, family...) I can't spend more the 10hrs/week playing. So I would like to be able to choose the game type (limit/NL) that with practice I can make spending money for my wife [img]/images/graemlins/smile.gif[/img] (also things like vacation, paying off the car...).

Personaly I like NL games better and have been doing pretty good at them, but I noticed that for the same blinds that that I play at NL games ($25 & $50 games) the average pot sizes for limit game are somewhat/much higher.

I guess my basic question is: which one is more beatable the limit or NL games (low stakes only for now).

I appreciate your help.
-David