I have used the Muxlab VideoEase line of baluns for the past couple years. Initially I was cutting costs and using an inferior BNC balun (COP Security) which gave me problems and some of them were DOA. I switched to using Muxlab and NVT and have never looked back since. The Cat5e runs are a piece of cake and the cost of the Muxlab or NVT balun is well worth the expense. When you plug everything in and it all just works and your customer is exstatic you will be glad you went with the better product.
Good luck
