We're thinking of a 36" cooktop (not sure yet which brand) but a 30" oven would be fine. We really don't have a tall wall to put an oven on and I figure I've been bending over to get into an oven all my life, so it won't bother me to continue.

The questions: Is there some combination of these that makes more sense than others? Should we stick with the same brand? Are there ovens that have controls easier to read in this configuration? What else should we be thinking about?