Looking for a Case + Holster Combo that works/fits

I'm looking for case for my Epic and also a holster that will hold the phone with the case attached. I tried to do this with my HTC Arrive but the case made the phone so bulky that I could barely squeeze it into my belt holster and then the magnetiic cover would hardly close.
 
Is there any case + holster combo that I can purchase or at least a holster with enough room to hold the Epic with a case attached?
 
I really liike the Seidio Active X case but I'm afraid it will make the phone too thick for most if not all holsters other than the Seidioi snap on holster.
 
I was also looking at these two Amazon items but don't know if they really would go well together:
 
Rubberized Case
 
Leather Magnetic Holster
 
Any suggestions?

I ended up buying the Seidio Active-X case and holster combo.  Love it.  The only negative is that the soft rubber backing tends to stretch out where there is no reinforced plastic and when I try to clip it on without lifting the clip, the clip will get caught on the soft rubber opening at the top of the phone.