Well I decided to try out the Razer Carcharias today from Best Buy while I wait for my PC 360's, and I'm pleasantly surprised.
I'm not an audiophile and haven't listened to Higher-end cans like the K702s, but coming from the A40's I've noticed quite an improvement. There
is more bass, but not so much that it sounds muddy or drowns out certain sounds, in fact I'm hearing sound I never could w/ the A40's, it just has a beefy sound and doesn't sound hollow compared to the A40s.
For $80 its a nice headset IMO.
However the build quality seems poor to me. I may just be paranoid, but it seems like it would be a problem down the road, and this is coming from someone who handles his toys with utmost care

I think i'm gonna take them back when my PC 360s arrive.