You may remember my DC Design House post onTJ Monahan and ibby - a division of Case/Design Remodeling. TJ is an architect who knows the challenges of cost-effective, bathroom remodeling with houses built during various decades. He created ibby - which lets you design and price your bathroom remodel using custom software that gives a cost estimate as you add in elements. One of the interesting features is that you choose when your home was built, which lets them factor in the type of remodeling you'll need. After you design it, you can order free samples, buy the design, or schedule a consultation to have the space built.
Recently he sent me some before & afters of just completed projects. Love what they've done with this bathroom. Isn't that sink amazing!