Headphones for radio monitoring

Long time listener, first time caller... (take it easy on me!)

I currently present 2 (about to become 3!) shifts on a few community radio stations. On one station I present a music show where I play everything from pop to rock to dance and even the odd oldie in there! On the other station, I present scores and do play some older (60's/70's) music. However, I have a shift this weekend that requires me to monitor an OB (multiple, in fact), and last weekend I had to monitor a TV feed when I ran a press conference live.

I had a pair of Behringer headphones for my first headphones (can't remember what model, only got them because the station I had had them there), and they were horrible, they were heavy, build quality was poor, and the same could be said for the sound quality!

Currently, I use a pair of Sennheiser HD 438's, which I've had for about a year now. They've been, well okay I guess, however they are VERY comfortable. Again, I got these without any real knowledge about professional headphones, and with no idea that I'd be doing three shifts a week!

So, I'm looking to upgrade (at the anger of my parents, they say I have more than enough headphones/earphones lol). I don't want to spend any more than $200 on a pair of cans. There's a few in particular which have caught my attention, such as:

• Sennheiser HD 280 PRO (mostly becaue they're going out at a bargain price at the moment)
• Sennheiser HD 25 (I'm getting confused between the HD 25-1 II and the HD 25-SP II!)

• AKG K240 Studio

• AKG K240 MKII

I will admit, I do have a personal leaning towards the AKG's, but only because I have seen heaps of radio studios use them in photos, and they look really nice (I know, style over substance, go ahead, shoot me, be thankful I'm not interested in Beats! ;)). I've had a look at the Beyerdynamics, but they are out of my price bracket sadly. 

I'm having a really hard time choosing one particular one, so any help would be greatly appreciated! I have a rough understanding of headphone terminology (I know what closed and open mean!), but I have no idea what a headphone amp is for (again, shoot me)! Thanks so much in advance. :)

Thanks so much for all of the suggestions, I've had a look at each one quite carefully, they all look quite nice!

From looking at the Amazon reviews of it, I'm ruling out the Shure's on build quality. I tend to treat most of my stuff like they're worth nothing, so I doubt they would last long! The pricing is very competitive though..

I am warming to the Beyers, they should block enough sound out for me to do my job effectively. The HD 25's are probably the front runner at the moment, seen so many pros use them, and from what I've seen and heard, they're pretty tough too (the replaceable parts are very handy as well). I haven't seen too many radio people use them though, and I presume there is a reason for this. The AT's look pretty nice, but I'm tending to favour the above and the K271's. 

Few questions I should ask:

For the DT 770 PRO's, what difference is there between the 80 ohm and the 250 ohm models, and what is the limiter that is mentioned?

and:

Would I need an amp for this sort of thing?

EDIT: I should clarify regarding the HD 25's, I do see a lot of DJ's and TV commentators use them, but I haven't seen as many HD 25's as say, AKG's or Sennheiser's. :)

Quote:

Originally Posted by stv014 

It depends on what source you already have.

It would be coming straight from the console/mixer.
 

Quote:

Originally Posted by John Willett 

This is because the HD 25 were designed as professional headphones, not consumer ones and Hi-Fi shops don't stock them so much.

Indeed that is the case. I meant by that statement that I don't see many radio people wear HD 25's. :)

On price, I'd say the AKG K271's are ahead. The DT 770 PRO's and the HD 25's are definately not out of it though! Out of the three, which would be the most durable and most comfortable?