I really mean both - strategies (pipelines, parameters, processing) and ready tools. If there is a GUI for non-bioinformaticians, that would also be great.
What would you search for: a "copy number" or "hetero/homozygous SNPs"?
Michal: you may try sweep (http://www.broadinstitute.org/mpg/sweep/) from Pardis Sabeti, which finds the extended haplotype homozygosity (EHH) regions in a chromosome. It provides a lot of plots and visual info. Cheers