Scalability issues

Hi all,

I am evaluating Netflow Analyzer and was wondering if you could help me with questions concerning an Analyzer setup for NFE devices of a larger company network. In particular, what do you recommend as maximum number of Netflow sources for one box (where the analyzer runs) and what specs should this machine have?
From what I saw so far, it is not possible to analyze data on one machine provided from several data bases on different machines, is this right?

Thanks and greetings, Melitta

PS: I like this forum and the quick and friendly support you provide, making this product different from other monitoring tools.