for the love of money

So what do you do when an offer comes in from left-field and presents you with a chance to make a lot of money, but not necessarily doing something that you would enjoy? For some, this question may be a "o brainer", but I'm having a difficult time with it.

I decided some time ago not to make any decision that is purely driven by money. Not that there is anything wrong with making more money, but I still believe in the old saying that money won't buy happiness.

In my case, I have the opportunity to place all of my financially unstable ventures on hold to return to something that I was doing once before. In return I get steady income, regular work hours, and lots of headaches. Is it worth it?

One of my primary concerns is that I will not be able to just call it quits and put all of my other projects on hold, and as you can see from the time of this writing, I already have a problem sleeping at night due to all of the things that I feel I must get done in a day. Adding another full time job to my schedule isn't going to make things any easier, and even if I promise myself that I will not concern myself with my unpredictable internet ventures, they will still be there - in the back of my mind.

What to do? What to do?