Here is my post on the same theme (80x80mm fans on the cpu's with pics). I got info on what coolers I am running as well. One or two of the caps were touching the cooler but I am not worried about it because the cooler (which is huge) doesn't really get very warm where the caps are touching.
2x533MHz@544MHz, 2.0V
640MB PC100 memory
Realtek RTL-8139 NIC
Maxtor 6Y080L0 80GB hdd
Debian Linux stable with 2.4.8 kernel