I had a hard drive failure on my home Windows XP Pro DELL system last week. I decided this morning at about 4AM to rebuild the system as a dual boot with Ubuntu 9.04 on the second partition More here

So for the price of:
1 hour and 27 minutes more of my time installing Windows XP Pro versus Ubuntu;
20GB of hard drive space used by Windows XP Pro versus 8GB of hard drive space in Ubuntu;
no differences in functionality;
potentially becoming XP-ground-zero for every malware-writing jackass in the world;
I get the “equivalent” in Windows XP Pro?