Gloarmy has a great article, Malia Fiesta! It deals with some Broo painting projects. Great looking figures, and a nice overview of the beastmen available for doing Runequest (Glorantha) Broo.
One of the best things to come out of the Games Workshop machine are their chaos beastmen (which have a direct lineage to the Broo of Runequest, as Citadel miniatures used to produce those models, and then when Citadel started doing Warhammer figures, they reused some of the Broo models they had, renamed - simply - beastmen). Here is an excellent version of a GW Nurgle beastman, that could easily be a Broo Runelord.