Well, I have had my Iop for quite a few months now (close to a year I think), and have finally found a cpu cooling solution that I am happy with. I started with the lasagne, but it was way too loud for my application (kitchen). For most of the last year I've been using the stock heatsink with a chunk cut out for the hard-drive, but that was giving me heat problems with my K6-II+, so I've been searching for a cool, yet quiet cooling solution.
I finally have found what I was looking for. I just installed one of these babies over the weekend. The HS/fan is a bit too tall to fit inside the case, so I lined the fan up on the cpu, traced the outline on the RF shield and outer case, and put the dremel to work. The fan is a 12v fan, but to keep things quiet, I'm running it off of the 5v from serial2 using the connector from the lasagne fan. This design HS/fan has proven to be very efficient at cooling chips, and is quiet even at 12v, but running at 5v the fan is essentially silent.
http://www.sidewindercomputers.com/bluorbforgef.html
To keep fingers safe and sound, I added
http://www.sidewindercomputers.com/60metfanguar.html
It took some shimming to get it to mount properly, but I'm quite satisfied with the results. I'll post pics if anyone's interested.
Cheers,
boykster