Let me start off by saying that this is truly one of the most fun and informative sites/forums I've come across.
Therefore, I trust your judgement and I've done my fair bit of research to find a suitable set of portable cans for my needs. I currently own the Sony MDR 1R, which I enjoy very much around the house, They are very comfortable and sound really nice. That said, they aren't the greatest in terms of portability given the holes at the top of the earpieces and they can be a bit bulky to carry around. In terms of sound, they sound nice and warm with very good mids. I do however had to EQ them to get more bass response. Luckily my Cowon J3 has no problem with that, but ideally I'd want a bit more oomph.
Which brings me to my current quest. I listen to mostly hip hop (underground hip hop, so lyrics and details do matter, no boomy 808 songs will enter my skull) with some 60's/70's soul/funk mixed in. The Sony's handle the genres quite well, but I'm looking for something a bit more suited to that sound. Bass is very important for me as I want it to thump (controlled of course) and mids are as well as the vocals/lyrics need to be done justice. I'm not a big treble head so if they are smoothed out a little bit, I don't mind. So long as they are not piercing.
In terms of portability I'm looking for something that's not too bulky obviously, but I don't like something that's on-ear as comfort is really mandatory. If the headphones can fold up into a little bundle that'd be great as well, but it's not a deal breaker if they don't. Now for the tricky part, I live in the Netherlands and there's no way I can demo 99% for the headphones I see on these forums and most likely, I would have to import them if I do decide to buy. My budget is roughly $300, but I'm willing to stretch that if needed for import taxes, shipping, etc. (Just to give you an example of the amount of sucktitude I deal with in this part of the world; the only site that sells the V-Moda M100's, charge $450 for them.)
So there you have it. I've looked at the V-Moda M100 (worried about comfort), ATH WS99, ATH M50, ATH Pro 700MK2, Marshall Monitor, KEF M500, a couple of Ultrasones (hate their headband looks), so you get an idea of what I've been researching and taste in terms of looks.
All suggestions are welcome of course and looking foward to what you guys would advise.