Have you spent much time with Linux TF2? Any idea if it's more or less stable than the Windows / OS X builds?
Just for rough specs; both my Windows 7 64-bit & Ubuntu 12.04 64-bit installs have their own SSD (Samsung 830), on an i5 2500k/8GB RAM/nVidia 560TI machine. TF2 is installed on both the SSDs.