Congrats on your little man, Maryanne!
Lucasmom, I got a Sonoline B on eBay for just under $40 with shipping Buy it Now. That might be cheaper if you plan on keeping it longer than a couple months.
Lilesmom, Friday was my last day with my kids (second graders). I told them about the baby and showed them the last ultrasound picture on the projector. DH is coming with me Monday to pack my classroom, and then my summer vacation officially begins. I work on a farm part time in exchange for food during the summer and fall, but I'm only doing the minimum of 4 hours and early mornings because the heat is already getting to me with the pregnancy.