There are different types of showers suited for various homeowner needs - for example, a stand alone shower is great for small bathrooms, whereas families may prefer a shower/tub combo. Whichever you decide, hire a home service pro to get the job done.
This was the second plumbing company we had to try to determine where a leak in our house was coming from. They were very friendly and knowledgeable. Once it was found, they were upfront with cost and fixed it...