[Air-l] Undergraduate HTML text

Greetings AoIRfolk, I'm looking for a good text to use in an undergraduate web production class (Comm Dept)-- something technically sound but accessible, preferably grounded in some solid design principles. Any suggestions? Has anyone used Weinman's creative html design.2? Also, the last time I taught a web production class was four years ago, and I know things have changed since then (it was a straight HTML class, no stylesheets even!). I'd love to hear from others who have more recent experience both teaching and coding. What languages/skills/technologies/etc. do you consider to be crucial nowadays? As in, "You'd be doing those students a HUGE disservice if they leave the course without learning --X---!" Thanks, Nicole