Deframe, ondemand or citrix

I'm wondering is deframe / ondemand the same thing ?

secondly, are these products competitors to citrix or enhancements ?

I currently purchased metaframe 3.0 (have not opened yet) and own zfd4,
but did not realize that zfd4 had features available to deploy to terminal
services...

I just attended a week long citrix class and have seen all the features
and wondering if there is a comparison of the products...

During this class, I noticed some similarities between the novell and
citrix products..

We are getting ready to open a new branch by the end of the month and want
to implement the best product for the job...

please provide some input..

David