I want to buy a good pair of headphones for using with my iPod. I realise for the best sound quality I should go supra-aural (open), but the main reason I've chosen 'closed' headphones is because I'll mainly be using them whilst travelling, so don't want everyone else to hear.

I've been doing a bit of research and from what I can tell I should be looking for something with 32 Ohm, as anything more with an iPod would require a separate headphone amp to get the best out of the headphones.

I don't want to spend crazy money, but I'm open to suggestions. The ones I've been looking at are as follows (approx. $99 - $300):

Audio Technica ATH-M50 or ATH-A700
AKG K 271
Denon AH-D2000
Shure SRH440
Sennheiser HD 280 Pro or HD 448

The problem I'm having is that I've read lots of different reviews, but no particular pair stands out from the crowd in the given price categories - one pair scoring 95% on one site, 80% on another and 3 out of 5 (60%) on another.

I have quite a wide taste in music, so I'm looking for something that sounds good across the board - Hip-Hop/Rap, R&B, Reggae/Ska, Heavy Metal, Acoustic, Pop, Classical etc.

Any help that anyone can provide, audiophile or otherwise, will be greatly appreciated.