Goldeneye all the way. The others are great games. But, back when Goldeneye came out, there was nothing that could match it for years. The single player game was great by itself. But, the multiplayer is just legendary. Still great fun today. Sure, next to the others, the graphics are just lame today. But, it matters not. The game is great, and still in my top 5 of all time.
Soon there will be. There is a group of people making a mod to CS:S. They are calling it Goldeneye:Source. They are remaking all the weapons, levels, and characters using the HL:Source engine. No set date when the mod will be released, but the link I have here is the main page for them, with pics and info. Check it out....
america's army, farcry, Jedi Knight games, F.E.A.R. lots of games missing in this pole.
The 1st great shooting game i ever played was Unreal tournament. the graphics blew me away back in 1999 I'd just gotten a blazingly fast Voodoo4 videocard.