Good to see this thread alive. Haven't been able to say much because I watch all the cutting-edge stuff that may not be known by casual/non-BitTorrenting fans. (i.e. I download the latest fansubs, etc)
Can't say I've watched Naruto, but allow me to throw out some random off-topic series: my recommendation for anyone who's watching the latest anime via fansubs would be: the mindgame thriller
Kaiji, the hilarious slice-of-life
Minami-ke, and the two-toned dramatic and funny
Myself;Yourself.
Clannad, in the same vein as Kanon and AIR, is a solid bet as well. If you've heard of these,
Or perhaps, a show that more people have heard of, has anyone tried the second season of
Shakugan no Shana? It seems like a show that would be popular, although a lot of people don't like the current season...
(Oh, oh, one more.

I'm watching like 10 shows now. It's crazy.
ARIA's an easy one to top it off though, a great relaxing little piece for when you're totally burnt out.)