Most bang for 200$ ?

I'm pretty new here myself, one pair of headphones someone suggested to me was HFI 580s. They are under $200 and seem like a pretty good pair of headphones. However I don't know much about them but you can look into them.
 

What kind of equipment do you already have to plug them into? Basically I'm interested in what's inside that computer.

Anyways, the DJ100 are around $50; while I'm not opposed to seeing people save a lot of money, they aren't (imho) the best thing you can get within a $200 budget (personally I didn't like them very much, but there's some posters on here who I tend to agree with who do happen to like them, so I'm inclined to give them the benefit of the doubt and say someone may find them enjoyable - the advantage is, Best Buy sells them, and likely has them on demo).

Within your budget, I'd suggest looking at the following:

- Ultrasone HFI-2400
- Creative Aurvana Live!
- Bose AE2 ("AE2i" adds nothing but iDevice controls - so you can save the money if you don't need those features)
- Sennheiser HD 280 and 380 Pro (380 being the better of the two, but also more expensive)
- Audio-Technica ATH-M50 (there are a number of versions, they all sound the same)
- Grado SR-125 or 225
- M-Audio Q40
- Koss R/80

I know that's a fairly large list that I've constructed, and I would consider it a starting-off point more than anything else. For what you've listed and since you're unsure on whether or not headphone listening is really your bag, I'm really inclined to suggest the Koss R/80 or DJ-100 (imho the R/80 are more comfortable and balanced sounding, despite being the less expensive model) instead of pushing you towards something that sinks your entire budget. However if you want to go "straight to the finish line" the Grado SR-225 or Ultrasone HFI-2400 would be it; the Ultrasone have a bigger soundstage and more bass, the Grado are faster and more airy/open sounding.

The various closed/monitor headphones that make up the rest of the list have varying degrees of bassiness and "closed-in" feeling, from the very closed-in M50 and HD 280 to the relatively open-feeling AE2 and HD380. The Aurvana and Q40 will sit about in the middle.

There's some used headphones available here on Head-Fi, but as a new member I don't know how you'd fare at making offers. I'd avoid eBay because fake headphones are not uncommon.

For most of the models I listed, your computer should have no problem driving them directly.