This coming spring, I'm planning on planting a rose bush or two. The thing is, I have no idea where to begin. I do know that I want roses for more purposes than just to look at and that there are more varieties of rose than I can fathom. Are they really as high-maintenance as I'm led to believe? Does the variety matter greatly, or are the differences merely cosmetic? And (big one here) can rose bushes live in the same yard as two large dogs?