Individual ovens will vary and you can discover much from experience and observation. Hot air rises so the temperature will be hotter at the top of the oven and lower at the bottom. Most of your baking should be on a central shelf. You can turn a dish 180 degrees half way through the baking time to help ensure even cooking.
Cooking time can also be effected by the number of dishes you are cooking at once, so it's a good idea to place all the shelves you think you might need into the oven before you begin baking and check that all your dishes will fit onto each shelf. In that way you can swap dishes between the bottom and top of the oven during cooking without losing too much heat in the process.
Theoretically, if you are using fan bake the fan should distribute the hot air evenly around the oven and it should make no difference where you place the pans.
Pans and dishes that can go in an oven.
It shouldn't do, unless one of the pans is particularly not suitable for baking in; e.g plastic or rusty etc... If it does seem that baking in two pans results in one cake being worse, your oven may not be distributing the heat evenly. Switch which shelves the pans are on halfway into the baking time, rotating the pans around at the same time.
You can find a lot of accessories for your toaster oven. Amazon has baking sheets, cookie sheet and small pizza pans. Walter Drake and Miles Kimball sell specialized baking pans and muffin tins for toaster ovens too.
The oven temperature can be adjusted by changing the temperature of the oven. Over a few minutes, the nonstick pan can eventually change to the temperature of the oven.
As far as I have heard, no. They are floppy and annoying to move in and out of the oven, don't brown baked goods well and are just a general pain. Now that is just what I have heard. I have never used silicone baking pans.
place pans in different spots
Look for a baking pan that will fit your oven. A baking pan needs to be ergonomic for easy turning and putting in/taking out. You might want to look for one that is dishwasher safe.
Anything that will fit in the slot and can withstand the heat of a 40-100watt light bulb. You can make them out of tin foil.
The best brand for baking pans is Chef's Choice. It's the one I always buy.
Baking pans can be purchased at Bed Bath & Beyond. They have a deal for 3 baking pans for $9.99. You can also apply a 20% coupon to save an additional $2.
No.
Check the recipe before cooking. Sometimes preheating is, and sometimes is not, necessary.If you need to cook something in the oven for a specific amount of time at a specific temperature, then it must be cooked at that temperature the WHOLE time.If it takes 10 minutes to preheat it to 300 degrees, and you put the food in WITHOUT preheating, you undercook it.And if you out the food in WHILE preheating, you end up overcooking it.