Possible?

I just need X, ssh client and vnc would be nice too.

(64mb disk space, 32mb RAM).

edit: I NEED X to have xhost +whatever or ssh x forwarding. I can't kdrive to do this at the moment and also can't get kdrive to start a window manager.

64mb hah!
1.44mb bsd http://www.cse.ucsc.edu/~brucem/pico_notes.htm
It runs on a minimum 486 CPU with 8MB of RAM, no hard disk is required.

Sure it's possible, just don't use kde or gnome for your desktops. Use something like fluxbox, it's a lot less of a resource hog.

Less than 64MB of RAM, or disk space? My OpenBSD firewall only uses about 16MB of RAM, and that's with a pretty big set of packet filtering rules, 3 instances of arpwatch, sshd, etc... You could easily run OBSD on 64MB of RAM (probably NetBSD, too). In my experience FreeBSD uses more RAM, but I hear that it scales memory usage to use "nearly all" of what you have available, so if you have less physical RAM it uses less. Also, I've never really done a minimal install of FreeBSD.

X will use by far the most RAM of any process, so you won't want a window manager front-end (like xdm, etc) just use startx to launch your actual windowing environment. Use Fluxbox (or Blackbox), or one of the similar very minimal windowing environments.

32mb ram, 64mb disk space.

Considering this:
http://featherlinux.berlios.de/

but:

- yet to test
- it's linux

Hmm, 64MB of disk is really tight. Your best bet is to read up on PicoBSD. I just checked my OpenBSD install, and the minimum install looks around 120MB.

minimum install of FreeBSD is about 130MB but you can start to chop that down. Of course that is without any X support.

Take a look at the M0n0BSD hacker guide it does a nice job of helping you get a small footprint FreeBSD.