You can set up an automatic search with an agent for Cupertino School District under $650K, and you want to be poised to offer within a few days of new homes that match these parameters coming on the market.
This morning, there were three, and now there are two. A home on Miller 95014 (It's cupertino not W SJ) had offers due at 6 p.m. tonight. The two remaining are on Johnson and on Newsom. Both are three-bedroom, two bath homes on 5000+ lots.
Let me know if you would like an automatic search set up for you with Cupe schools. You can also look in 95051 in Santa Clara, very close to West San Jose off of El Camino and Lawrence.
I also have knowledge of one potential short sale in Cupertino where the seller kept holding out to get his $850K to not have it be a short sale, and I can contact that owner and give you the inside story on that house (needs some work but great schools). It's also near Johnson/that area where West San Jose and Cupertino meet.