I used
Yahoo! GeoCities: Get a free web site with easy-to-use site building tools
. to build our new site. I didn't know much about building and running a website and taught myself as I built it. It seems to be working fine and the parents that have visited so far love the extra information that they didn't recieve before.. Check it out....
index
You should check with your school district as well-- make sure your pto can run their own site-- we had a few problems with this-- we had to be on their server to run.