Half life 2 (/ Half life 2 based) mods
Perfect Dark Source, one of the best looking 'mods' I've ever seen, it seems to be a large project, they've been working on this one for quite a while, maybe a year or so. I dunno if it has singleplayer or if it's mainly and just multiplayer, but they've remade the music (which can be downloaded from the 'medias' section'😉 and what PC game has music in a multiplayer game? Trailers and screenshots are avalable to download.
Goldeneye Source, the team working on this one are going to release a alpha version on Christmas eve, 00:00. Media material are avalable in the forum, just like the Perfect dark source team, they've/they're remaking the music from the original and so far they've released a beta soundtrack (listened to it, it rocks!), so same thing here, it might hint to a singleplayer mode/campaign.
http://www.goldeneyesource.com/
So, does anyone know of any other interresting mod/mods?