4 spaces in 1 row.
1: firefox, ichat, songbird, email, word, vlc, etc (casual use programs)
2: photoshop, illustrator, etc. (design programs)
3: terminal, coda, eclipse, jedit, ftp (development programs)
4: vmware fusion (run xp off bootcamp or ubuntu)
of course, like all spaces users, im just waiting until i can get multiple LCD displays running in my setup instead 😱