Need some cans...

[Shure]

I'm looking for two sets of headphones one set to be used for PC use run directly off the M-Audio Revo 5.1 and also for home use for the iPod
The second set being used only for the iPod when out and about.

This is what I've nailed it down to so far:

Set 1:
Senns HD595(50ohm)
Grado SR80
Bose Triports

Set 2:
Shure E2C's
Etymotic ER6i's
B&O A8's
Bose inear
Super Fi 3's

Any advice more than welcome

 

[Shure]

I think I've decided on the 595's and I've narrowed it down to the ER6i's or the UE Superfi 3's. Once thing that concerns me though is with regards to the flanges...do they ever disconnect and get stuck in your ears?

Can anyone recommend a headphone amp aswell? cheaper the better but less than £75

 

[Shure]

How much better are the Shure E4c's compared to the previously mentions earphones? are they worth double the money?