If you have tweaks please post them below!!

iWaterMultiSamples=0 (effects multisample textures for water)bTreesReceiveShadows=0 (effects whether trees are covered in shadows from other trees, buildings, rocks, mountains, etc)bDrawLandShadows=0 (effects whether terrain gets shadows from itself i guess)After changing them to 1 I noticed a big improvement. Water looks much better, the trees and leaves actually have shadows on them now. Frames per second didn't dip much. Do other people who set the graphics to Ultra still have these parameters set to 0 in their SkyrimPrefs.ini too?Edit: I'll update this list as tweaks are added.Hit ~ for the console.FOV change - Type FOV and type in preferred number. Hit enter.[Display]iShadowMapResolutionSecondary=1024 (resolution or blockiness of shadows, increase by increments of 1024, 2048, 4056 for smoother shadows)iShadowMapResolutionPrimary=2048 (same)iWaterMultiSamples=0 (effects multisample textures for water)bTreesReceiveShadows=0 (effects whether trees are covered in shadows from other trees, buildings, rocks, mountains, etc, changed to 1)bDrawLandShadows=0 (effects whether terrain gets shadows from itself i guess, changed to 1)iShadowFilter=3 (!!! correction: effects smoothness of shadows, any setting higher than 4 leads to glitched shadows)[LOD]fLODFadeOutMultObjects=15.0000 (distance objects get "blurry" in order to save fps, changed to 20.0000)fLODFadeOutMultItems=15.0000 (changed to 20.0000)fLODFadeOutMultActors=15.0000 (changed to 20.0000)[Particles]iMaxDesired=750 (maximum particles rendered onscreen, changed to 1000)[Trees]bRenderSkinnedTrees=1uiMaxSkinnedTreesToRender=20 (maximum trees rendered onscreen??, changed to 30)[Grass]b30GrassVS=1fGrassStartFadeDistance=7000.0000 (distance that grass can start to fade out, changed to 8000.0000)fGrassMaxStartFadeDistance=7000.0000 (maximum distance before grass starts to fade, changed to 8000.0000)If you have an Nvidia graphics card you can download Nvidia Inspector (ver 1.9.5.5). It will let you force enable ambient occlusion in Skyrim. There is around 10 fps hit for enabling ambient occlusion but it does look very good. There are quick tutorials on setting this up in google search.