I switched my desktop computers to Linux about 2 years ago. Everything works fine, even hardware support is now great.
Of course, QHIM does not run on Linux. It runs so crappy on Windows, why would I expect more. I wish I could easily switch to some other program if only it would allow me to import my inventory database from Quicken (2000+ items).
A friend of mine advised me to try running it under Wine, but it does not really work. Apparently, all the custom UI stuff I wrote about before is not standard Windows API, so it cannot be ported. Oh, well.