What are the best Gladiator style games for PC?

I have recently been watching Spartacus: Blood and Sand, and have had a sudden urge to play a game similar to the tv series. I had a brief google, but only found "Gladiator: Sword of Vengeance" which has abysmal graphics. Any suggestions to quench my gaming thirst?|||Try the MMORPG called Runescape, its free to play and loads of fun!