Is it time to move up?

I play only 2/4 limit at PP. I 8 table and consistantly win 1.5BB/100 per table. I am very confident about my skills at this limit and have a fish list with 1000 names or so.

My circumstances have changed a bit as I am switching careers. I work very part time and am finishing my Master's degree. Long story short, I need consistant income from poker, although my wife makes good $ and I have several months of expenses saved in my emergncy funds. My gut tells me to stay put, but I do tend to be a bit conservative about such things. Any thoughts out there?