Played 26 hours now and savegames are at 8 mb now (as game progress indicator).

Up to now I could play with max settings with only very few crashs (not reproducable)

But now im stuck, getting crashes all the time.
The crash is cdt or freeze, 50/50.

when freezing happens I can check the taskmanager and it is always at 1180 - 1220 mb of TESV.exe

Lowering texture detail helped in Solitude, with max details solitude crashed like 1-2 secs after entering (around 1200 mb). With lower texture detail it was completely playable.
But I did fast traveling to "bandit canyon" (free translation, I play german version) WITH LOWEST POSSIBLE detail and it crashes there again like 1 sec afetr arriving and again at around 1200 mb.
Continued playing and crashes occure more often after fast travelling, useless to play on now ...
im stuck now ...

man ... PCs rly have plenty of memory and I guess they use the same resource handler for PC as for consoles ....
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System Information
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Time of this report: 11/14/2011, 22:06:42
Machine name: ANDREAS-PC
Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.110622-1506)
Language: German (Regional Setting: German)
System Manufacturer: MICRO-STAR INTERNATIONAL CO.,LTD
System Model: MS-7388
BIOS: Default System BIOS
Processor: AMD Phenom™ II X4 955 Processor (4 CPUs), ~3.5GHz
Memory: 8192MB RAM
Available OS Memory: 8192MB RAM
Page File: 2727MB used, 6486MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode