Played Space Marines ever since I first got in the hobby back in the RT days. Though been in an out. Dark Angels were my primary up until 3rd Ed. Since then Imperial Fists and now Crimson Fists. Also have about 2000 pts of orks that I have been having fun with and just for the heck of it started putting together some Nids.
Also have some square base stuff, dwarfs and Dark Elves, but they are mostly gathering dust right now with 40K being the main draw for me right now.