As I've said before, I like the look of iChat. So when I made the switch yesterday to Adium, so I could use both the AIM and Google Talk (viz: Jabber) protocols at the same time, I began a hunt to have Adium replicate the look of iChat. If you feel similarly, I'll save you some time. First, don't download the official Adium client. Instead, download Metal Adium X by Mike Barca. That will give you the metal look for the chat window(s) and the Contacts list, as well as Aqua-y goodness for progress bars, etc. As he explains on the Metal Adium site, Mike updates the app within 24-48 hours of a new release of the official Adium client. Second, download iChadiumMod, so your message view will have the iChat-style balloons. Next, be sure to change your sound set to "iChat" in the Events preferences. Finally, you'll need a new Dock icon. There are a few iChat replica icons on Adium Xtras, but I didn't want an exact duplicate. I'd like to be able to tell my apps apart, thank you, so I went with the iChat Adium derivative. Looking at my chat setup now, I can't help but wonder if this is near to what iChat would look like with tabs:

I'm sure Steve would have the tabs at the top, a la Safari, but otherwise, pretty darn close, no?