Sep 9th 2009 9:07PM Trinket is, thankfully, not required. It can help occasionally, but it's certainly not necessary! We've downed Champs several times in PvE gear (although several people do switch to a PvP spec, eg. Shadowfury Warlocks).
May 24th 2009 4:17PM Good points - I've heard some suggestions that Holy Priests could go 2-piece t7.5 and 2-piece t8, but I don't know how the numbers work out so I can't say for sure whether that's beneficial. Interesting idea though, even if it isn't a good one.