Gamecube: Eternal Darkness, Metroid Prime 1&2, Beyond Good And Evil, Resident Evil 4, and Skies of Arcadia: Legends at one time or another per month.
PS2: Timesplitters: Future perfect, Mercenaries: Playground of Destruction, Primal, Warship Gunner 2, Drakengard (with the crap-awful music muted), And Valkyrie Profile 2: Silmeria.
PS3: Dead Space, inFamous, Resistance: Fall of Man, Resistance 2, Soul Calibur 4 (Creation and doing the Tower), And going to get Red Faction 3 Soon.
PC: Guild Wars (Dear god, too much of that timesink in the last 4 years), Company of Heroes (incl. Tales of Valour and Opposing Fronts), Freelancer, Overlord, Requiem; Bloodymare (which is where my Avatar comes from), Sins of a Solar Empire (Give it to an RTS gamer and watch them become addicted to it in hours), STALKER; Shadow of Chernobyl, and the UFO After<> Series (Aftermath, Aftershock and Afterlight).
I play.... Way too many games.