I have a have/want thing in my sig, but that's more of a value, budget minded setup.
I have the ep630s and bose IEs
I want the Beyer dt880s, Ultrasone HFI-780s, Denon D2000, and/or AT ESW9. I really only want 2 of those 4. The Ultrasones and ATs are portables sorta, so one of those and either the denons or the beyers for home/transportable.
Senn PX100: My initiation into good sound. I loved them for a year, and then came the HD-650 and made me unable of enjoying PX100 (or my mid-fi sony, or mostly anything) as before.
Senn HD-650. The best I have heard untill now.
Grado SR 225: For metal and rock, although I havent ever tried them, "the consensus" says they are good at it. If I grow fond of them I might go for one of ther Big RS Brothers.
Electrostats: too expensive, I prefer not to get to know them, just in case I like them
High-end IEM´s, but I don´t travel in bus or train, or see an occasion to use them anyway.