Ight so I tried out the Quake Live from iD wich is an in-browser multiplayer fps and I ihave to say it's pretty fun, especially since it's free. There are a bunch of maps/arenas and if you play it in full screen (alt enter) it looks pretty good graphic wise. Very fun and kind of addicting as when the match is over it goes straight into another one, no waiting room or lobby like CoD, you can exit at anytime though.You register with your email and such and DL there Quake Live Plugin which is only 3.8 MB, the reason for that is the game uses javascript excessively to run and installs pretty quick, you do a quick match against the computer so they can detect your skill level and put you in matches of close to the same skill, pretty much like H3. I recommend you check it out, especially if you're bored, after all it's free, and as my father used to say, "free is for me!"
www.quakelive.com
www.quakelive.com