I think it's better to hire one coz it will relieve you of so much stress from the preparations that you're into.
My wife was able to talk to a wedding coordinator (she got her contact no. on weddingsatwork.com). Her name is Love - 0917 414 6760. They are just new in the biz but they knew what to do coz she was the one who planned and coordinated her own wedding. She also had a number of clients already. We got their OTD promo, but it's worth it.. it was like gettin a partial turnover coordination at a lower rate.