Give FreeBSD a try, if only so you can make a valid comparison. They say that Linux kernel 2.4.10 and higher gives FreeBSD 4.3 a run for the money as a server OS but I don't know if that's still true for FreeBSD 4.4 and higher. I'm running FreeBSD 4.5 Prelease and it's still the OS of choice for my gateway box.I might start running FreeBSD 4.4 on one of my boxes sometime next week. I'm deciding whether to use Red Hat 7.2 or FreeBSD 4.4 as my intranet web server
And, it's a very decent OS just for desktop duty.