S.V.
Hi L.,
I've been working outside of the home for all of my children's lives (except for maternity leave). There really wasn't a choice. But I've always put my kids first. When they were younger, when we came home I would get changed quickly, then spend a little time goofing around with the kids -- snuggling, dancing, whatever they needed. Then "we" made dinner and ate together. Bath time was more play time, and bedtime was book reading and singing lullabies. It was all about them. Dinner was something quick and simple, and often breakfast foods (pancakes, eggs) or soups, pasta, etc.
As they got older, we adapted this schedule to what was needed -- homework (yes, even in preschool), piano lessons, Girl Scouts and Boy Scouts, etc.
Yes, you are tired at the end of the day, but they go to bed early when they are young. Also, as they get older, you see them less and less as activities and friends take over so you will appreciate the time you spent with them.
On another note, depending on the job you have, you may be able to either start with a part time situation or, as you've been there for a time, work flexibility into your job. While still full time, I've been able to negotiate one work at home day a week, and the flexibility to take time off for events that are important to my kids. I've worked my butt off : ) to get these priviledges, but it's been worth it.
Good luck to you.