I hope you really like automatics, or you are going to regret buying it in the near future. In the performance department, Honda automatics are pretty useless.
If the engine was replaced at 100k miles, the owners probably abused it pretty bad. A well maintained Honda engine should easily last 200k with few exceptions.
Get a Carfax report on any car before you buy it. It gives useful information, and will usually tell you if the odo has been rolled back, if it has been crashed, flood damaged, etc.