I totally disagree with wpshooter if what he means by his vague statement is that Linux isn't what you should do.
You should shoot for Ubuntu 5.04 and openoffice 1.5. The printer you should shoot for HPs as they work pretty flawless in Linux. If you ever need to manage the computers I suggest having a SSH VNC client setup and there are some good support threads on the Ubuntu official forums. You will spend just as much time setting up a windows machine for remote, stability and security as you would Ubuntu, if not more. Not to mention the peace of mind that noone is going to install illegal software on the system, without ease anyway, so your brother in law will have a pure, holy system ( which means a lot in the church comunity).
OpenOffice comes in spanish. Ubuntu has Spanish support and Ubuntu has broad hardware support. Click
Here For Spanish Ubuntu Screenies
I am assuming the Noted Hardware is what you are looking to invest in?
Sempron to buy
MOBO to buy *despite the 1 bad newegg comment by the newbie*
I did some research on those combinations and it seems that if you get that asus MOBO with the first revision bios the 64bit sempron won't be recognized but will still work. Make sure you flash it before you install Ubuntu. The video card should work because it's VIA and VIA support X.org. Sound should work with onboard audio. The Via SATA is supported, as is the raid option, under Linux.
Along with 512MB of ram you can make a fast, stable machine with relative ease for your brother in law's ministry.
