Windows 7 on Clevo M720R
32-Bit Install
Under 32-bit mode I was unable to use more then 4GB (obviously), but i couldn't use inbuilt webcam either, other wise everything else was quite fine.
64-Bit Install
Under 64-bit mode I was unable to install SD-Card reader drivers, webcam drivers, and my beloved digital pen. I have been able to use bod SD-Card reader and Webcam under Vista64 without any problems. For SD-Card reader it seems that the driver needs to be re-signed, or I might need to enable developer mode [boot hack]. But Webcam and digital pen still stand without drivers.
Conclusion
After googling for couple of hours, I came to conclusion, I will not be able to use my inbuilt webcam, as there are no Windows 7 drivers for BisonCam [ALi Corp. 0402:5602], so I might move to Linux after all, as there are now drivers for this webcam for 2.6 kernel.