None of the headphone's on THG's review are what I'd call high-end, and "surround headphones" are not needed -- your sound card can do that trickery already, use that DSP for something!
There have been some threads here, so use the search. Grado is often a favorite for those who like bass (the SR-125 is US$150). If you want a closed headphones so as not to annoy people around you, take a look at the Sennheiser HD280. Also,
Headroom has a handly look at prices. Alas, due to the relatively weak dollar prices have gone up
Edit: the
Allessandro MS-1 is essentially the SR-125 but for $50 less, take a look. And take a look at the AKG K240S on headroom.
Finally, try to listen before you buy.