Are you running the cable to jacks in the wall or will it have RJ45 ends on them?
Two things you should make sure of when running Cat5 through ceilings/walls...
1. Make sure you use solid cable instead of strand. It's better suited for termination.
2. Don't use cheap CCA cat5. CCA is Copper Clad Aluminum. Find stuff that's 100% copper, it's only a few bucks more.
PM me any questions. I'm a network tech