Tom has hit the nail right on the head. You'll need a bare minimum of 425 for 25 minutes to cook any kind of decent bread.
If you're a complete novice to bread making, I'd start with a recipe that uses only flour, yeast, water and salt.
Find some bread flour, the differece in end product is amazing.
If you have the patience for it, recipes that have 24 hour refrigerated rises (or 2 day, or even 3 day) are sooooo worth the wait.