most larger sites, like trulia.com, will tell you any relevant HOA fees. for inclusive tax information (school, county, and property), i use http://www.weichert.com, if i'm not getting data directly from a realtor. it's also fine to call the listing agent, to ask about the breakdown, between school, country, and property taxes.
and yes: monroe county has not yet made an equitable adjustment to the economic downturn in home values, in that area. pike county's taxes are much more affordable.