Congrats! I drive from Turtle Ridge to Brea and back every day (I work off of Imperial and Kramer) and I take 73 to 55 to 5 to 57 in the morning and in the evening, I take Tustin to 91 to 55 to 73. It's about 26 miles for me and I get to work at around 8 and usually am home by about 6:30...Most days it takes me between 35-40 minues, not too bad; traffic is mostly moving the whole time. It might take you a few extra minutes on the 405 if you take it to 55 vs the 73 route I take. If you're going to leave at around 5:00, you'll probably find that the 55 gets a little backed up around the 5 freeway, otherwise the 24 miles is definitely bearable by socal standards. I agree with whoever posted to stay in the left lanes on 57N after the 91 in the mornings - when school is out for the summer, it's not a big deal but for the rest of the year, the CSF traffic slows things down. Hope that helps.