Finally caught the last episode (most recent, that is, not "finale"), and I have to agree with bri and onetime2... they're really starting to blur the boundaries between 90210 and "ABC After School Special" (which is possibly the same discussion that Luke will use next time he chats up Caitlin).
It'll be interesting to see how (and if) Jimmy pursues this torrid affair between his soon-to-be-ex and his daughter's ex. I like how he noted how wrong the prospect of that relationship would be
because it would kill Marissa, and not for any other reason.
I think Julie Cooper may have accidentally discovered a new way to make a buck in the OC.
One final thought... they brought the "spa girls" back in for brief moment at Caleb's party. Maybe my threesome/deviant sex theme will actually come to fruition?