Thanks to those who replied. Based on the piece parts cost, it looks it will be cheaper to purchase a power supply in an enclosure and remove the contents and place them in my structured media enclosures.
I'm looking for an 8 camera 12VDC 5 amp distributed power supply that is not mounted in an enclosure. I already have two structured media enclosures where all my siamese coax is routed. I want to locate the power supply in an enclosure and convert to two CAT5 cables w/baluns that run to my computer/dvr location. Looked at Altronix and didn't find anything.