I have had some interesting exchanges recently with Michel, a prolific wargamer and driving force behind Opération Zéro, the site for Francophone wargamers in Belgium. http://operationzero.rforum.biz/forum. He is a great supporter of the Renaissance rules Tercios, which he and colleagues play in 10mm. Michel recently started collecting Poles and Cossacks and we have been discussing how to track down useful background in English or French about the period and theatre. Of course the rules By Fire and Sword provide a lot of really useful background, but there is not much else published about the period in the sort of detail a wargamer wants.
Having been obsessed with the Chudnov (Cudnów) campaign of 1660 for a few years now, I have put together a conversion chart to turn the Orbats for this campaign into units for Tercios. Of course the original data is open to challenge as sources disagree on the numbers involved, but I used the set on which the majority seem to concur. I hope the tables are self explanatory. There is more about the campaign on this website as well as a scenario each for Tercios and for Maurice. I plan to offer scenarios for every engagement of the campaign eventually. These include a meeting engagement, a set piece battle, a fighting retreat and an assault on an entrenched camp.