while the AD900 is definitely out of your budget, you may refer to my review of it in this post: http://forum.lowyat.net/index.php?showtopi...post&p=42471023 (a complete review with links/references link is also there that links to my website)

The AD700 in general speaking is after all, a scaled down version of the AD900.
you may also refer this website: http://www.headfonia.com/audio-technica-ad...1000prm-ad2000/ for info on the the Audio Technica AD series

anyways as previous poster said, please refer this thread for recommendation: http://forum.lowyat.net/topic/1849925

=edit=
adding more link lol

Strictly speaking, if you are a certified basshead, then ad700 is not the headphone for you. There is bass, but mayb not as heavy as some other bassy headphones. But, in return, you have very clear audio.. So, depends on what type of music you listen too..
However, since I'm not a basshead, the bass provided by my headphone is more than enough IMO.
Haven't tested it with games yet, but the reason i chose ad700 is because of its sound positioning and clear-ness. Can hear each word clearly and can hear where your enemy shooting from (source: my friend is a user of the ad700)
Anyways, I can't really give you a good comparison as my previous headphone was a RM50 headphone >_>
So, obviously this headphone pwn my old headphone.. Lol..
But, compared to my sis sennheiser px100, the sound is also much better..