Okay, I am in the process of switching from Windows XP 32bit to Windows XP 64bit on my main device.
My idea is to

My idea is to
- keep focusing on Windows XP as my object of study
- install Windows XP 32bit + 4GB RAM on older computers, so that these are able to run both 32 and16 bit Windows applications
- have Windows XP 64bi t on the computer that I use for studying and working, with 16GB RAM for smooth running a decent Unix-like distro, in a virtual machine, for C/C+ production, and for running work related apps, should any employer ask me to use such