OK, you can scratch everything i said about 64 bit on the Phenom II.
The problems were related to the box itself and not to the OS. #1
there was a failing HD being used as the boot drive. #2 the onboard
video was a mess. Both problems have been resolved. Initially I
reloaded the 32 bit ubuntu Intrepid to make sure everything was
working properly before then upgrading to the 64 bit on a
chance. Well this time it has worked, I have a darned nice little
machine here finally. Its stable and fast. Boot up time is a bit
slow but thats inherent with the 8.10 supposedly being aided by
the next version. I will now wait until the official release of 9.04
since its so close to lift off.

For anyone debating on moving up to 64 bit, all I can say is try it
and see. It does seem to boost performance and speed. Graphics of
course are really enhanced. Videos are much sharper and
clearer. Is it necessary ?
No, its not, but if you have the capability - then Why not? Just
make sure you don't have hardware problems- it is super sensitive to
that sort of thing.