Bedrockgames
I post in the voice of Christopher Walken
I like the Osprey books, too, for just about any period. Otherwise, grab a copy of this from your library (or through their interlibrary loan dept) and see if it gives enough detail -
Amazon.com: Roman Military Equipment: From The Punic Wars To The Fall Of Rome (9781842171592): M C Bishop and J C N Coulston: Books
This one looks great. Exactly what I am looking for.