I Know that a map is nice to see the places but have you thought about a program called "parish locator". I don't know where I got it from, but it's freeware. You just punch in the name of a parish and then set a circumference in miles etc and it puts them all into perspective IE X is 9 Miles West of Y. what I have found handy is it gets away from being countycentric (a word I just made up

) and can lead you into unexplored avenues.
Not as pretty, but very handy as you can centre it on your known reference point then using it spread out to surrounding parishes.
As I say I don't know where I got it from, but D M Bennet who wrote it should be well and truly congratulated for creating such a usefull tool for research.
Got luck in in all your endeavors