I'm still tossing up between these phones and the SA6, so maybe you guys can help me. I've read the comparisons in this thread, but I'm still undecided.
I listen mostly to ambient, post-rock, classical-type music with a bit of electronica and indie rock thrown in for good measure. I use AD700s at home which I love; I really love the large soundstage and the instrument separation (well, they sound good to my non-audiophile ears!) I tried my Dad's SE210s and really disliked them - they seemed very veiled to me. Note also that I'll be using an iPod and Macbook unamped, and buy most of my music from iTunes so it's mostly relatively poor quality (128kbps up to 256kbps).
Given the horrific state of the Aussie dollar at the moment (should have made up my mind sooner

), and my preference to buy locally if possible, the SA6 is around $AUD80 more expensive than the SF5. Obviously the extra year warranty and replacable cables are things that I will take into consideration in terms of value (I don't really care about the wireless option), but I'm mostly concerned about the comparative sound quality having regard to the music that I like.
Sorry for the long post; hopefully someone can help me!