[THIN] Opinion - homogenous farms or silo'ed

I have a question in the midst of a clients restructuring of terminal
services.  Currently, a 2 server citrix farm was added 3 months ago that
silo'ed the companies critical applications (8 of them) in order to
handle the load of the users (PS3.0 advanced).  Users logged into a
plain MS Terminal server and accessed the citrix published apps thru the
terminal server.  Why you ask?  We could not change the terminal server
design until a slower time - plus, the terminal server houses an
additional 20 programs that are not on the citrix farm.  So in the end,
users run in there TS desktop session and also run the citrix published
apps.
 
We have an opening of time to redo this because we had a problem with
the speed of the published apps thru the terminal server on a WAN side
(could be the ICA to RDP - still would like to figure out if this is a
culprit) even though on the LAN side it was fine.  So, in most opinions
- is it better to create a farm of homogenous servers or in this case,
keep a login Citrix server to handle the 20+ programs and silo the
critical apps to the farm using published apps?
 
Opinions?  Comments?
 
Thanks in advance..
 
 
Ron Jameson @ Hamlin Technologies 
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