Split Personality  PK's Blue Water Grill has the soul of a funky
fish house and the body of a fashionable seafood restaurant
That disarming combination takes some getting used to, but it's
a successful enough merger. The proprietor, Pat Kiley,
reportedly spent more than a decade with Goode Co. Seafood, and
he's transplanted a good deal of the culinary philosophy along
with a bit of the spirit of that highly successful establishment
to this sedate, stylish operation. Whether that's a
strategically calculated approach or just a happy accident is
hard to say. But the results are easy to like.  The place
formerly housed a location of The Grotto, one of those Tony
Vallone Italian eateries that were absorbed by restaurant borg
Tilman Fertitta a few years ago. Anchoring a well-appointed
strip center on Woodway in Tanglewood, the space still maintains
a level of style and design befitting its upscale socioeconomic
area. A few pieces of tasteful modern art adorn the cool, blue
walls, while panels of rippled glass an