Quake 4 is not a rumor, its being devloped by raven using the doom 3 engine. Its not going to be out for a long ass time though, im guessing a year at earliest. Id be really surprised if it came out sooner. Quake 3 was not a bad game at all, it just didnt have the good mods early, and that floor bug, where u could shoot under the floors. The throughwall splash damage crap was stupid, although i won many matches because of it on T4.
Quake 2 was my favorite of the series, it had good guns, only flaw was that it was slow. But I still think it is the best quake game. And uhhh, a 2.4c with 512 mb ram, and even a 5900 ultra will no way in hell run a game "smoothly" with AA on. Come on....thats so not true. That game gets 50-60fps on a 3.0 in 1024x768 with AA on. All i know is, when i get doom 3, its going to be ran at 640x480, with AA on, the way i see it is, you run the lowest cleanest res, and turn on AA, makes it looks as clear and clean as the higher res'. Bleh, just the idea of paying $400 for a damn video card is ridiculous.