I am interested to know what application you are doing that requires
    'real' random noise. I have stated previously on this list a lengthly
    objection to anything but pseudo-random numbers, but I could be wrong.

Security applications require unpredicable random numbers rather than
statistically random numbers.  They're quite different (a pseudo-random
number is completely predicable, after all), and there's an (Internet) RFC
available describing appropriate characteristics and some techniques for
getting random numbers suitable for security applications:

1750 Randomness Recommendations for Security. D. Eastlake, 3rd, S.
     Crocker & J. Schiller. December 1994. (Format: TXT=73842 bytes)

BillW