Dungeon Master for the past 7 years.

Too bad my playgroup is scattered and we hardly ever play more than once each 6 months, but hey, they're enjoying themselves!
Oh, yeah, pick Bull's Strength, Divine Favor, Bless, some Inflict spells (assuming your channeling ability is for Cure spells, otherwise go the other way around), possibly the Strength domain if you have access to it (or War for some Bonus Feats), put a lot or Ranks in Concentration and Heal, and you're good to go. If you do not have War domain, Weapon
Focus and wielding a Heavy Flail go a long way for a Cleric, specially since it allows you to hold a Shield.
Power Attack and Cleave are great Feats, as well.