New iTunes today. Some of the best-looking features include a lossless encoder (hope it's FLAC), Party Shuffle (very handy), grouped compilations (at last), user-published playlists in the iTunes Music Store and radio station charts.
daapd has already been updated to work with changes to the library sharing protocol (v0.2.2a works with iTunes 4.5: the release dates on the daapd page are wrong, it should say 2004). Make sure you build the updated libhttpd as well, before compiling daapd, otherwise it wont work.