It looks like your latest BSOD is a STOP 0x9F, just like the other recent ones. They list NTOSKRNL.EXE as the problem. NTOSKRNL.EXE is the main Windows 7 process. It is either a victim or your Windows 7 instance is corrupt.
1) Have you run CHKDSK C: /F /R ? It would be worthwhile to confirm your file system is sound.
2) Is this the ASUS Factory version of windows or a clean Windows 7 installation that you have done?
3) Have you had any problems installing any Windows Updates?
The first BSOD recorded is different. It is a STOP 0x1000007E with MijXfilt.sys listed as the cause. This is a driver from Motion in Joy.
4) Is Motion in Joy still running on your system?
5) If you perform a Windows System Restore to a date prior to 27/12/20011, does it resolve your BSOD issues?
G74SX-A1 - stock hardware - BIOS 202 - 2nd Monitor VISIO VF551XVT