Composting question

We're looking to buy a composter for the garden. I saw a dual composter (think the brand is Lifetime) at Costco today and am wondering...is this a decent brand...and is a dual one really preferrable over a single composting bin?

Calling all gardeners

With spring approaching, I'm thinking that I need to get a list of people who have time and energy to share their gardening knowledge. At our house, we have two raised boxes that will be crying out for attention soon, but I know almost nothing about gardening. Help?