I'm sorry to hear about your loss pitflyer. I understand the urgency to try to find the cheapest fare, as I was in a similar situation last year.

It sounds like price is a deciding factor for you, so I checked out Hotwire. Fri-Tues was outrageously expensive ($1591), but Sat-Tues was much less. By selecting 0-1 connection, jet, and no to off-peak, the fare quoted was $583.00. Changing to max. 2 connections, and jet or propeller option, the fare lowered to $480.

I realize that Hotwire doesn't top the list of options for you (i.e. not knowing flight times or carrier), but thought that I would share the option anyway. Priceline might also save you $$$ (especially with the $50 bonus money link on Sheryl's board). Best of luck in finding a reasonable ticket on such short notice.