Don't know, if anyone here has seen "One Tree Hill," but they have Macs all over it. Peyton (a character on the show) owns a cinema display and isight. She also started a podcast this year, which you can get on iTunes.
In Karen's cafe (on the show), they have iMac G5s, but stickers cover the Apple logo. I've also seen iBooks and Powerbooks on there, plus iPods.
Furthermore, I read in a diary entry on Bethany Joy Lenz's website (one of the show's stars and a talented musician) that she has a Powerbook G4.
The 1998-2002 show, Felicity, had Mac talk form time to time. Noel was a big Mac nerd on the show, and he had an iMac. Furthermore, when his girlfriend came to visit (who was played by Jennifer Garner), he became upset, when she said she got a PC, and he pointed out "yeah, they're fine after they ripped off the Mac operating system."