I got 22:38 on a dual proc Opteron 248 2.2Ghz, 2Ghz RAM. I also have a lot of things running in the background so I could most likely tweek my machine to get better times.

I have 2 other machines that I use for testing net rendering but I have some other things to do right now. I'll post the results later today or tomorrow.

Those machines are:

Athlon 64 4000+ 2.4Ghz

Opteron 148 2.2Ghz

Both have 1Gb RAM and 1mb L2 but the 4000+ costs about $100 less. My testing shows that tey are comparable in their render times. No real advantage to using an Opteron in a single proc system.