Let the hive mind of Engadget get that for you.
"I'm looking for a pair of quality headphones that aren't seemingly made of glass. I'm an avid BMXer which causes me to frequently bash on any type of technology that joins me for my daily riding. I've been through the higher quality headsets in the Skullcandy line as these are supposed to be built for "abuse," which is laughable. I cant wear earbuds or canal buds, as my large ears seem to have a repelling property upon anything that sits in them. Wired or Bluetooth doesn't really matter, but I need something that can hold up to taking a few hits every now and again. I'm trying to keep 'em under $150. Thanks!"
If David wants to stick with Onkyo and wants THX, the entry level THX Ultra2 model would be the TX-NR1007 @ $1499 MSRP, although he can probably find it out "on the street" at about $1100 or so. You can get the THX Select2 Plus rated TX-SR707 for $899 MSRP (probably about $650 street). However, new AVRs with HDMI 1.3 sound decoding can be had for as little as $400, if you dont mind a weaker amplifier stage. Keep in mind that the THX badge does NOT mean its the end-all-be-all! There are PLENTY of good AVRs that do NOT carry the THX badge and will sound BETTER than the Onkyo at a lower price. (Marantz comes to mind, check out the SR5004 and SR6004!)
Finally, keep in mind that the PS3 (the old "fat" PS3 anyway) decodes the sound internally and outputs multi-channel PCM. This means that any AVR that supports HDMI v1.1 will work just fine. You might try looking on the web for people selling their newer, but not quite state of the art AVRs, you just might find a steal! Hope this helps!