This is a great simple GPS with all the basic features. Dick Smith is selling it for $79 and it seems to go for 88-110 elsewhere. I bought at TGG with a price match and I am sure that JB or anyone else who has it in stock will match as well.
If you buy a garmi nuvi 40 from any authorized retailer between now and dec 31 and redeem before mid Jan you will get free lifetime map updates.
http://www.garminredemption.com/
I should say it is $79 for pickup but DS does do free shipping on order over $100.
Less than 10%