What are good horse games for the computer?

I have alot of games that are old ish like, Saddle up: lets ride and stuff like that i want some links to there website etc. also they should have a demo and if they have 2 names please list them :) thanks!!|||Horse isle I think it's a virtual game online with horses you can buy own sell and auction them off your very own ranch!!my best friend loves it!!!! She's a horse fanatic....she says beware it's addicting....have fun!