This topic has kept me up at nights. Like you, I hate using a big oven when a smaller one will do. So, I have decided on a speed oven--likely Miele, although GE and Electrolux makes them also--which is a microwave, convection oven, and I think/hope it toasts as well. They are a little less than a half-oven. I would go for the wall oven, warming drawer, and toaster oven/speed oven for you, and skip the double ovens. I think double ovens are great if you bake in large quantities where the food needs to be precisely cooked at different temperatures, but for meats and potatoes and such, the temperature differential is not really a big deal. It is easy to reduce/increase both the temperature and time and still have everything come out fine. A warming drawer is fantastic. Remember, with a convection oven, things cook faster, so for that occasional large meal, it is easy to cook many things and as they finish, put them in the warming drawer while you go onto the next item. Also, with 6 people in your house, you will have kids coming and going at all hours of the day. Rather than say, "Honey, let me heat up dinner for you," you can relax on the couch with a glass of wine and say, "Honey, your dinner is in the warming oven."

Another Advantium owner here. So I don't know the specifics of the Electrolux. I agree with what sophie123 said. It has more than replaced our toaster oven, and microwave. I haven't tried it, but I think the Advantium could bake with just the upper halogen, and lower ceramic elements, without using convection, but I don't think I'd bother setting it up that way. I baked some quick Jiffy muffins last night in a silicone muffin pan, on the metal speedcook tray, using straight convection bake after preheating. 11 Minutes. They come out pretty even, probably helped by both the convecton circulation, and the rotating speedcook tray. PS, I also pull out my cheap toaster when I just want to make some toast for breakfast.

The Krups toaster ovens are the best on the market IMHO. I am linking below to their simplest model, #FBC2. Krups makes two other models which have more complicated preset functions, which it sounds like you wouldn't want. The FBC2 has the stainless steel crumb tray you want. I don't know about the "enamel bake pan" you've specified--not sure what that is. But the Krups FBC2 comes with a non-stick bake pan, broil tray and thermal resistant tongs. Here is a link that might be useful: Krups FBC2 Toaster Oven at Amazon

I have the same setup for over 5 years and I am happy with it. Background: I moved from a house that only has a range and an otr microwave. Hated that otr microwave as it didn't sucks anything and the filter was a pain to clean. Kitchen was so so small and could not have more than one person in the cooking area and very limited counter space. When I bought the current house I want the new kitchen to have clean counter top at most if not all time (no small appliances on counter). I have enough wall cabinet space to accommodate a speed oven, convection oven, and a cooktop. We use the mw function of the speed oven daily, I also use it for most day to day baking needs as we are a small family of 3 and it hit up much faster than the big convection oven. MW function was the only request my DH has in the kitchen, so that was a must for us. I have a small toaster oven that we put away in cabinet when we don't use it (we use it at most once a wk, sometime maybe once a month). I did want to get a combi steam but I don't have enough space to add to what I already have. So I gave up that to grant DH's wish. If I have the space, I would have want to add that to my current setup as nice to have but what I have definitely meets my need. HTH.