Sorrento like Taormina is nestled in the cliffs, but has much more dramatic larger buildings and higher sheer cliff walls. Its definitely a different place. It also has much more Tourists in general. We've still found hidden excellent restaurants, and have had some of the best Italian food yet here.
Capri is an easy day trip via Ferry, and is a great little island with much to offer. Split into Capri and Ana Capri, you can cover both by foot if you want to hike and climb many steps. There are many high end shops, restaurants, and boutiques as well.
The Pompei city site which has amazing fairly intact ruins that were partially taken out by the Mount Vesuvius volcano, is also an easy day trip by train from Sorrento. The site is quite large and you can spend many hours just walking through all the ruins.
Tomorrow we take some of the high speed trains all the way North to Venice.