I was going to say the same, St. Jerome's PK-8
http://www.stjeromes.org/stjeromeschool.htm and St. Anselm's Abbey MS-HS boys
http://www.saintanselms.org/ or Dematha HS boys
http://www.dematha.org/. There are no good local options that I am aware of for HS girls. At St. Jerome's last year non-Catholic tuition was about $8,500 for one, 10k for two, and 12k for three children. I think that it is changing for next year. The HS are significantly more expensive, but if you have a very high achieving boy, SAAS gives financial aid. GL and welcome!