At job (University) i m running slackware 9.1 on lots of computers, http, smb servers and we're pretty satisfied of it. Its main quality is that they have for goal to look like a professional OS, not a windows-like linux. Stability is excellent, install process is ok. The full distribution can be stored on a single 700Mo CDROM, you may need 2 if u want to have sources and all the bootdisks and such.
You can select at install everything you need or don't need, and batch it to make it re-installable later on another computer. Several windows manager are available, from gnome to enlightenment, via fvmw95 (very usefull to save memory). Daemons are up to date, like most of the main tools (gcc, libs, emacs...) and make of the slacks a good developpment platform.
Compilation of drivers, kernels and such never caused any troubles and now, there's even a website that provides slack binaries of lotsa applications (
http://www.linuxpackages.net/) if you're to lazy to compile them yourself
In the past, i was running redhat 3.0, then 5.0, but had to stop due to to many vulnerabilities and lack of stability. I went to Slackware and now, we have something like 250 computers using it, for students or teachers and the big great majority are pleased of it. I would never come back to redhat (or mandrake). I have also tried Suse and Debian, both were pretty good, far better than RH, but my heart still balances for Slack !
I had no trouble compiling eqemu 0.4.4 on Slackware, haven't tried 0.5 yet tho.
Muuss-Decimal