Le Chat. I resent that massively. I'm giving up everything in order to be closer to my kids after my ex decided (whilst I was on operations) to move me out and move her new fella in.
Comments like yours perpetuate this myth that "men are broccoli, only mums can care about their kids etc" It really boils my blood to hear the anti-father rhetoric spouted by so many in society. I do a 200mile round trip every weekend to spend time with my kids, and will do until my notice in the mob is served.
Vikki, from a Dads perspective, if you decide to go and do this then think about the damage he'll have to deal with should things go pear shaped. Your kids will resent you if twice in a short time frame they're moving from one school, city and home; to another and then back again. They will end up hating you and he'll be the one who has to rebuild their confidence in you (again personal experience).
Think long and hard about what you are gonna do, and whether you're really acting in the best interest of your children, or if you are portraying the worried persona to ease the guilt of the fact that you know you're thinking about number 1!
Until you have made your decision get onto your ex about maintenance. He should be paying in some form, regadless of what he earns. Whether it be money into your bank, the mortgage on your home, the debts from your marriage, or clothes for the kids. If he bleats on about no being able to afford it then post his phone number on here and i'll 'explain' how he can get his head out of his arrse and do it. I'm paying all of those, as well as commuting, and i'm totally skint!