Good wireless keyboard/mouse?

looking for cordless keyboard and mouse so I can get rid of some of the cords from my desk
I want something with
– long battery life (charging dock included)
– nothing over $100 (including shipping to Canada)
– possibly backlit on keyboard
– only using it for typing, internet browsing , and regular use (not looking for gaming keyboard/mouse)
– also consider buying them separate (or just buy either one)

below is the two I found from dell website
http://accessories.dell.com/sna/products/I_O_Devices/productdetail.aspx?c=ca&l=en&s=dhs&cs=cadhs1&sku=A3598028
http://accessories.dell.com/sna/products/I_O_Devices/productdetail.aspx?c=ca&l=en&s=dhs&cs=cadhs1&sku=A1260949

any other suggestion??