Holtsville, Suffolk:
Pro's
Great area, good school district
more affordable homes
Bigger backyard for your money
Very small, nice community
Low taxes
Very close to LIE and other major highways
Great in the summertime because its not too far from the wineries and the Hamptons.
Suffolk feel! The houses are spaced out, more property. Not as tightly knit as Nassau would be.

Con's
A little further out east than I wanted to be.
Very large school district. Sachem covers several towns.