I've installed Helix Gnome on a Debian "Potato moving to Woody" machine. It works great, and the extra bit of effort that Helix has put into the presentation is really worth it (IMHO).
I've installed a number of user accounts starting from scratch for each one of them (removing previous .gnome etc directories - I'm sure it wasn't necessary but I wanted to start fresh). All have moved from enlightenment to sawfish. Just one of them has odd behaviour that I'm trying to understand. With a number of workspaces, their gmc icons (Home directory, Slashdot, etc) remain only on the first workspace. But worse than this, the icons sometimes get a title bar with buttons!!!!!! Looking very ugly. Often happens when using the Control Center and also it seems under other circumstances that I can't quite get a grip on yet. This user has the cooper sawfish theme and the seaGTK gtk theme, but a little experimenting isn't conclusive about whether it is the themes that aftects this? I do not (yet) see this behaviour on other accounts. Is this something controlled by the themes, and any ideas where I look to "fix" this. Many thanks, Graham