Re: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY...help
ok, what happens if you boot into the regular runlevel 5, and when it hangs, use ctrl-alt-f2 to get to a console screen? Is your 3g dongle active, then, after network manager starts?
another thing you could try is re-installing those 2 packages from the install DVD if you have it. The rpm files would be located in the /Packages folder on the DVD.