Andru,
Being torn between family life and spiritual commitments - I know how that is.
The noble eightfold path has this big emphasis on everyday life built right into it - see the chapters on morality in the book you're reading. "Solid practice" is not just insight meditation, it's also about developing the skills of moving gracefully in society.
However, for the meditation parts of the path, I found that rising early I have about an hour in the morning, and when our daughter is in bed at night, there's another hour I can use for sitting. Then there's lunch break at work, which I often use for walking meditation along the river. Depending on circumstances, I also tend to do a lot of tranquility meditation - it has a stabilizing effect: I was a bit edgy and irritable from insight practice around Christmas... bad timing, with lots of complex family diplomacy going on over the holidays.

There's a neverending supply of opportunities for applied Dhamma in everyday life - just keeping the five precepts in mind is a full-time occupation.
It's tempting to divide between family and practice, inside and outisde, holy and profane. I found that while it's useless to take daily worries into meditation, it doesn't hurt to practice sila all the time.
Hope that helps a little.
Cheers,
Florian