Check out the Red Box Alliance web page for new fantasy sets available:
ALL72062 Windy bay warriors. Set 1. Heavy Cavalry (horses are wearing partial Plate Barding; 12 mounted riders, 6 poses)
ALL72061 Southern Kingdom Warriors. Set 2. Heavy Cavalry (horses are wearing partial Plate Barding; 12 mounted riders, 6 poses)
ALL72060 Southern kingdom Warriors. Set 1. Rangers and Scouts (8 are armed with Bows/4 have Long Swords/12 poses total, 48 figures/box)
ALL72057 Mounted Light Eastern tribes. Set 2 (horses are wearing Scale Mail Barding; 12 mounted riders, 6 poses)
ALL72056 Mounted Light Eastern tribes. Set 1 (horses are wearing Scale Mail Barding; 12 mounted riders, 6 poses)
Note that these are 1/72 scale figures, which would be 25mm tall, if standing.
These sets are primarily based on the Lord of the Rings movie series, but they are suitable for just about any fantasy based war/RPG games. They are not strictly Tolkien-specific in design.
They typically sell, on e-Bay, for around $21 USD/boxed set, delivered to the USA (check this seller for likely the best prices on the Internet). They paint up as good as metal/resin figures, and they are remarkably affordable, with good quality, surprisingly detailed, sculpts and poses.
If I did not have literally a hundred Human Cavalry troops already in my collection, I would be placing multiple orders on e-Bay… Cheers!