Migration from domain to domain

Hi,

Apologies in advance as I understand this may be a little outside of support scope.

I wonder if you could please offer advice for duplicating a multisite install with Marketpress, easyblog, prosites and a few others.

I wish to copy the finished site on several other domains but am concerned as there seems to be many issues with this.

I would really appreciate any pointers you may have.

Thanks in advance

nick