>We are looking towards moving everything away from Foxpro and towards a new technology. Probably over 3 to 5 years. These are the layers we initially outlined:
>
>Presentation Layer - Thin client and some thick client (browser-based, Java, C#).
>Application Server Layer - Handle requests from Presentation Layer and outside sources (Java or C#).
>Business Rules Layer - Interpret requests and return/update data in the Data Layer (Java or C#).
>Data Layer - SQL Server or Oracle.
>
>Any very general recommendations as to whether C# or or Java would be better choices? Is there a right and wrong combination of languages across the layers?
>
>Looking for some very broad thoughts here.

From my experience I'd go the C# route.

WIN & WEB off the same business layer code. You just build that class(s) and attach them to either GUI. This is fantastic!