Time to move on

So I am looking for a new job. I have been in my current job (Choices Quilts) for around 3 years now, and I think I just need to move on to something else now. My feelings are along the lines of "I wanna do computer science full time" and not just as a hobby.
Don't get me wrong, my time here has been pretty great. I got to travel and represent my company at trade shows, interact with our customers and deal with our Indian business partner. At a small family business, one gets to wear many hats. My responsibilities have ranged from CTO ( hey I get to call myself what I want! ) to Marketing & Sales Manager to Quilt Designer! I definitely have learnt how a small business operates, the problems it faces, and that exponential success is sometimes a bad thing.
What I am looking for now is to be part of a team where I get to use cool new technology, and by helping the company grow, I get to step up the corporate ladder! What I really miss here is the team aspect I think, where by interacting and hanging out with geeky colleagues, you get to learn so much. Hrm, this is sounding like a cover letter now! " I would love to be part of your company, because what I will bring is going to be so unique!!"
I wonder how different it will be working in the big bad world. I joined Choices right after school, so this has been my only work experience. Here, we work real hard, we work harder if there is stuff to be done, we try and please our customers all the time, and of course, all of us share the profits. The incentive and motivation to work hard at your own business is different. Or is it? People have often told me that you work harder when you know the money is directly going into your pockets. Hence, family businesses get a lot of work done by their employees i.e. the family members. But how is this really different from working "outside": you work hard - you get rewarded, you put in more hours - you see a bonus, you deliver on schedule - you get a raise. Sure the profits might be different in terms of $$, but hard work pays everywhere and if you are smart, then people (should) recognize that.
Wish me luck!