I would first say, you should wait a little, there is a GoldenEye mod for UT2k4 already in progress and I'm in the mapping team, there(site have little problems right now):
http://goldeneye.downclan.com/
Second, if you want Perfect Dark or Mario 64 maps, go there:
http://www.emutalk.net/forumdisplay.php?f=109
ok, about the dumping, in order:
i have the tr64 0.8.8 video plugin with tex dumping enabled, so where does it dump the textures?
-it normally dump into the folder TILES in your emulator directory (you might have to create it first)
do I have to configure it?
-as said below, you might have to create the folder first
How do I do it?
-the plugin will export textures as they are loaded in the memory, what you have to do it , when you are about to get where you want, go in the video plugin config and check "Enable texture dumping". now as soon as textures are loaded, they will be dumped in the TILES folder.
And also, how do you dump the actual map geometry?
-Yes, Almost the smae thing for the textures instead, it will dump the geometry in the emulator folder, not in TILES. You wiill only have to check the "Enable VRML output" when you are at the place you want to dump. I will warn you tho, in most cases, you won't be able to dump everything in 1 shot, as for Goldeneye, the game only loads what you need to see, everything else is unloaded so won't be dumped. Also, that plugin export the geometry with VERY BAD proportions, it might take a lot of work to make it loook correctly.
Where does this stuff get dumped to???
-textures in the TILES folder and geometry in the emu folder
I want to make some goldeneye maps for ut2k4...And is it posiable to dump music and sounds?
-For sounds, you moslty have to record them by yourself while running the game
-For music, there are already rips of N64 musics, those are called USF, they can be played using a plugin for winamp, go there:
http://hcs.freeshell.org/usf.html
You can use winamp disk output to write them in wave while playing then convert them to .ogg for UT.
What about meshes? Is there a tut on doing this somewhere? I am new.
-I didn't find any tutorials, if you know how to use 3Ds Max with the ActorX plugin, it should do the trick. there are some 3ds/maya -> unrealED tutorials tho
Sorry for the bad typing, i have one of those rubber keyboards and its hard to get used to.
-Wasn't that bad
There is one more thing, I would suggest you getting Lemmy's lastest video plugin for nemu64, it dumps the geometry already textured (along with the textures of course) all at the same time and with perfect proportions. You can use that plugin with 1964 but not PJ64. It work the same way as the TR64 plugin but it dumps everything under C:/VRML (make the folder first):
http://www.emutalk.net/showthread.php?t=21092
good luck