I'll build some new configs. Just let me know what ur framerates are like now and what your hardware is and how much video memory you have and what details you prefer... I have done a
COMPLETE OVERHAUL of my config to get the best experience. I've been tweaking and testing for over a week now.

I can make a low end, mid range, and high end config for most rigs...
*ON ANOTHER NOTE*
I also tweaked out the Ambient Sound Effects, Low Pass Filtering, and FX Volume to get a truly EPIC audio experience. Battles are now truly earth shaking if you have a solid system. I found Ear Phones sound so insane with these effects! You can hear peoples foot steps and the tiny details more. So you can hear someone walk up behind you!
I have been doing a lot of research and testing on the engine lately and figured out how to force the engine source to work with 8192 textures.
From this website...
http://udn.epicgames.com/Three/TextureSupportAndSettings.html
Unreal Engine 3 supports texture resolutions from 1x1 to 4096x4096.
Unreal Engine 3 defaults to limiting the maximum number of texture mips to 13, which effectively limits the largest rendered texture to 4096 (1x1 to 4096x4096 is 13 mips). This has the side-effect that imported 8192 textures will only render up to mip1 of 4096. The constant MAX_TEXTURE_MIP_COUNT which defaults to 13 in the engine source files can be modified to a value of
14 to support 8192 texture rendering.
2048x2048 12 mips 2.66MB (2,796,344 bytes) 5.33MB (5,592,560 bytes)
4096x4096 13 mips 10.6MB (11,184,952 bytes) 21.3MB (22,369,776 bytes)
8192x8192 14 mips 42.6MB (44,739,384 bytes) 85.3MB (89,478,640 bytes)
So basically I altered the texture streaming from max mips from 13 (4096) to 14 (8192).
MaxTextureMipCount=13 (4096) to 14 (8192)
There's not much to gain by altering these a lot. I reduced the texture stream pop-in a lot. On top of that we are talking about
DOUBLE the texture resolution of default. Huge video memory usage but with my testing it's not so bad. I tweaked it a lot! and I have managed to keep video memory below 1,024MB of video memory usage. So if you want 8192 textures your going to need at least 1GB of video memory.
If any of you guy's have 2GB of more video memory let me know! I wanna test out some INSANITY Detail levels which require more than my limited 1,280MB of video memory. I'm going to be purchasing a 2GB video card soon to push the engine EVEN MORE!
*NOTE*
Just to let you know doing the below alone will not change them to 8192, there's quite a few more steps involved to truly get it enabled and working.
[TextureStreaming]
PoolSize=140
MemoryMargin=20
MemoryLoss=0
HysteresisLimit=20
DropMipLevelsLimit=16
StopIncreasingLimit=14
StopStreamingLimit=8
MinEvictSize=10
MinFudgeFactor=1
FudgeFactorIncreaseRateOfChange=0.5
FudgeFactorDecreaseRateOfChange=-0.4
MinRequestedMipsToConsider=14
MinTimeToGuaranteeMinMipCount=0
MaxTimeToGuaranteeMinMipCount=0
UseTextureFileCache=false
LoadMapTimeLimit=5.0
LightmapStreamingFactor=0.04
ShadowmapStreamingFactor=0.04
MaxLightmapRadius=2000.0
AllowStreamingLightmaps=False
TextureFileCacheBulkDataAlignment=1
UsePriorityStreaming=True
bAllowSwitchingStreamingSystem=False
MaxTextureMipCount=14