Cell Phone and Internet Access in Glacier, Banff, and Jasper National Parks?

Hi – I’ll be traveling to Glacier National Park in Montana, and Banff and Jasper National Parks in Alberta in a few days. I’m wondering if I’ll be able to use my cell phone (Cingular/AT&T) or access e-mail & internet at all while I’m away. Does anyone know:

1. Does Cingular/AT&T cell phone service work in these areas (and/or does it cost a ton, being in Canada), and

2. Where can I access free e-mail and Internet in these parks? I do have a laptop with wireless internet access.

Thanks!!!!