I am running a Nyko intercooler...
Mine runs fine but the Nyko fan is annoying as hell!
Also if you are looking for backwards compatibility!
The first release systems the 20gb and 60gb have
full backwards compatibility! the 40gb has none and
the 80 has about 80% I got lucky and bought the 60gb!
You can buy a new 2.5mm hd.. IT MUST BE A NOTEBOOK
HARD DRIVE! other than that can't say much! hopefully
you have a good HDTV and remember to get good cables!
If you have any other questions just ask! I'll try to help
as much as I possibly can! I have read Sony has confirmed
that the fan test can damage your console! I also have
heard that it doesn't damage you console whatsoever!