Have not read all the threads but I know how the OP feels.
I took off 4 years from my career to be a SAHM.
I have the A grades at a-level, the 2i(hons) from a top university, I have an MSc (again from a top university.
When I graduated, I got a job immediately, at £20,000 per annum (this was in 1998/99). In this part of the UK, it was considered very well paid salary at the time.
My husband had a starting salary of £14,000 although he does not have an MSc. My husband is now earning £70,000 per annum.
I took 4 years out, and guess what? The highest salary I have been offered so far is £20,000.
I estimate that, had I not had any children, I would now be earning between £43,000-47,000 per annum - as one of my peers (I was his line manager) is currently earning.
Still, I've chosen and made my bed, so I will sleep in it. Do I have any regrets? No. However, when I hear or read the words "equal opportunities employer", I want to vomit. Equal, so long as you not taken a career break to have children. Bitter? Moi? Perhaps my attitude has changed over the last 4 years. I don't know. Still, whats done is done. I will just have to live with it, as the OP will have to, as well.
Oh, and I now spend Saturday nights on Mumsnet (because of the children), instead of going out and socialising. Double whamy.