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.
To keep fingers safe and sound, I added
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.