Which operating system?

Hello you, reader of this blog, nice to meet you. ;-)

Today I thought the whole evening about an operating system I could use on my new x86.
And I have got only a few wishes on my lists.

It shouldn't be:

• Windows(tm)
• Linux(tm)
• GNU/Hurd
• Minix
• OpenBSD
• Slowaris

But it should:

• run on a x86 architecture
• have got the gcc (version doesn't matter)
• run without a GUI (so good bye native MacOS)
• be POSIX conform

So I thought of:

• FreeBSD
• SchilliX
• Nexenta OS

This could be very difficult. FreeBSD is just another *nix distribution, and I don't want to go on this way...
SchilliX sounds not too bad to me, but if you have got a look at the history, the development seems to be frozen.
Nexenta OS is a mix of the Debian system (with the GNUtils) and the OpenSolaris kernel, so you try another way, but you can keep the whole GNU experience(s).

I think I should give Nexenta OS a try. More news about this topic soon....
Good night.