2001 Toyota Camry Need new tires for car

I'm on a fairly tight budget and am hoping for some advice on what tires to purchases to get me through the next 70K or so miles on my car. Safety is important, of course, and I live in the Chicago area so get rain & some snow/ice. 3 days of the work week I do highway driving for aprox 80 miles total. What tires and how much & what is a reasonable deal in terms of cost? I understand that there's extra labor expense for the re-balancing. Just wondering about cost of tires.
Many Thanks!