I am slowly making my way towards setting up a 16 - 20 camera IP-based system, with most cable runs around 50 - 100'. Does it matter what kind of cable I get? Amazon has a few well-rated Cat5e options for only $50 or so for a 1,000' spool. There's no reason to get Cat6, is there? By the same token, I should use Cat5e over Cat5, right?