I have narrowed down my choices to the AKG K430 and the Senn HD218.
I really don't know how to choose. Please can someone help me decide. And i'm using a first gen ipod touch bought in Hong Kong if that helps.

Reviews told me that the HD218 is very comfortable but has no case nor is it gold plated nor come with a 1/4 plug. It has good bass and is a px100 on steroids. It doesn't fold as compact as the K430. Personally think the Hd218 looks better but don't really mind.
The K430 has a case and 1/4 plug. But I'm not sure about the sound. The price i can get them for are entirely the same. Not sure about the comfortablity though. It is more compact than the HD218 when folded.

Thank you guys.

well i have the AKG 450's and the Senn HD238's. They're both good in their own right, however, the Senn's don't handle bass. Plug them into your average dance track or rap album at an average volume, and you'll hear the diaphragms cracking with the strain.

The AKg's rock, however they're very midrange and bass driven.