I picked up a copy of Warhammer Online this past week, and have been quite enjoying it. Enjoying it enough that I’ve joined a guild. So far they seem to be a pretty decent, if somewhat sarcastic and crass, group of people; I should fit right in. They require the use of Ventrilo for voice chat, which is a pretty reasonable requirement for a guild that’s going to do PvP combat.
There are some quirks with Ventrilo and Vista, however, and I wanted to make mention of them here in the hopes that they might be useful to other people. Note that these tips were only tested with Warhammer Online and they may or may not apply to other games, and while this was done on 64-bit Vista, both Ventrilo and Warhammer Online were the 32-bit versions so they should behave the same on 32-bit Vista. Your mileage may vary.