The built in Micro and seperate single oven is the way to go if you need additional oven space. The problem with the single unit micro oven is that the microwave dies first.

Like the above poster said, it comes down to how much you cook and entertain. For me, we have the double wall ovens and cooktop. It is great to have a Thanksgiving turkey going in one oven and the appetizers, and sides in the other. Also, it's really nice if you are a baker being able to make twice as many cookies at once at the holidays. And the ease of getting the cookie sheets from a wall oven.

A double oven makes all the difference on Thanksgiving dinner, or any other dinner with company, for that matter, so that you can cook more than one thing at a time. I'd get it. I also think it would make your home more desirable when it comes time to sell.

Also, the additional cost is not that much when you look at the big picture of spending hundreds of thousands of dollars on a new home, a couple thousand more isn't going to make a financial difference in your monthly mortgage payment.

I've struggled with the same decision in my kitchen remodel. Instead of a gas cook top and double wall ovens, I've decided to go with a gas range with a small electric wall oven and a separate microwave above the wall oven. Just thought I would toss that idea out there for you. :)

I'm having a new home built and I went with a built-in wall oven/microwave combination plus a separate rangetop. I had a built-in wall double oven in a previous home and never used both ovens at the same time.