I have been in IT for 25+ years and have installed/designed IP camera systems for commercial entities. Axis certified professional (but don't hold that against me... lol). Looks like you have a great forum here.
I am currently working as an IT Director for a firm that is looking into security...
@tangent is exactly right... and @Maconi is correct on the bandwidth. Dont waste the $$ and/or the problems dealing with stiff Cat 6 cable. For the bandwidth IP cams use, go with Cat 5e cable! The video and bandwidth cannot tell the difference!