Any reason why you'd need anything super new on a workstation? EL5 is pretty old but it should have most anything you'd need to get work done.
I wanted to try out a tiling window manager, of which there seem to be none. It certainly isn't anything I need, but I'm just spoiled by having a full range of software available to me in other situations, I think.
Edit: I'm starting to get into vim lately, actually. Partly because of having to work over ssh a certain amount. It's a neat tool, but I've barely scratched the surface so far.