I finally did it. After another incident of malware infection, I decided to switch from Windows to Mac. I got myself a Mac mini with a 2.0 GHz Core 2 Duo processor, with 2 gigs of RAM and 320 gigabytes of storage space.
And so far, I am loving my Mac. Runs fast, and the OS X Leopard is just amazing. BOINC has a Mac version too, so I can still crunch numbers for SETI@Home et al. The mini needs anHDMI out though, and dual-screen out.
I still plan to get a Windows machine in the future, an AMD Phenom II quad most likely.