I have actually acquired some new hardware for the "farm". There is an Intel Xeon E3120@3.1GHz with 8gigs RAM and a solid state drive. This machine is running 64-bit Ubuntu 12.04LTS with SSSE3 optimized SETI application.
The second machine is an Intel Pentium G850@2.9Ghz with 4gigs of RAM running 64-bit Windows 7. At this stage, its still running the stock applications.
I am still concentrating on SETI@Home but am still doing a bit of Collatz and QMC (about 10%).
Some of the older machines will be retired in a month or two.