You may be interested in http://better-scm.berlios.de/comparison/comparison.html which compares a slew of different revision control systems.
Thank you. Some other reading won't do harm. Although I'm afraid that reading too much wouldn't bring me anywhere. Better to try the real thing hands on. OTOH I'm more and more convinced on Subversion+SVK.
I'm a GUI kinda guy. Having just discovered that Tortoise lets you add detail columns to explorer for things like tags and version numbers I'm in clover. ;)
Of course this a feature that AFAICT all modern SCMs have... [cf. changeset commits]
CVS doesn't, although I guess you could argue that it's not modern.
That's what I meant.