Hope you find a good set that fits your needs. I've owned/own the turtle beach px5, astro wireless mixamp, sennheiser pc360, 558 and 598 in that order. Currently rocking senn 598 with the astro mixamp and it's a perfect setup for me.
The turtle beach px5 was the first one i bought. Pretty good sound, heavy set of cans and fun with extras as bluetooth and needing only 1 cable between controller and headset if you don't have the bluetooth dongle. Think there are mixed reviews on it on youtube, only saw that there was some cons in the beginning of the release but a update after might probably have fixed it. The reason I returned mine was because of the hissing noise, maybe I was picky but it was to load for my taste.
Astro wireless mixamp works good for me. A must is the battery pack, this thing eats ****ty AAA batterys for breakfast and then some, I kid you not. I can still hear some hissing but not as load as the PX5, don't thinks so atleast because I didn't own them at the same time so not 100%. Eventhough it is wireless you gonna have a few cables running BUT I prefer having them running between me and the mobile RX unit then across the whole room as with the none wireless unit.
PC360 is good (depends what you compare it with), very practical but in my opinion also expensive. Practicality doesn't play that big of a part among my preferenses so i did mind spending that much on these phones so I returned them.
Sennheisers 558 were better sounding than the pc360 even for a audio novice as I the difference was noticable. The 558 worked good with a dealextreme.com mic for a few bucks. They went for 87% of the cost of the pc360, mic from dealextreme inc. in calculations, and as practicality wasn't a big issue for me a better bang for the buck than the pc360 in my opinion.
I returned the 558 to buy the 40% more expensive 598. I know I would have always wondered how much better the sound would have been with the 598's otherwise. Was it a good upgrade?? I haven't regretted it once. Soundwise I can't say much as I haven't tested them back to back, the sound is better then the pc360, no doubt. I didn't own the 558 long enough to break them in either. My guess is that the sound in my ears wouldn't be a big difference BUT ohh boy do these phone sound good and are a killer gaming phones. Can't tell you how many times someones has tried to sneak up beahind me in gears of war 3 and I do a back roll, turn 180 degrees and BAAM!! Headshoot b***h!! Well something like that..
The colour and style though, beware is very subjective to taste. This was one of the strongest reason I upgraded to 598's, you'll look like a BOSS wearing these. I totally dig the style but I know there are alot of people that think the look awful, probably same people wearing sweatpants and hoody to the club
Nuff rambling, hope you find a good set. This isn't a cheap way of going by trying to find a good set of headphones so hope you get it right with the first try. If I was gonna go with the best price to sound ratio I would have gone the astro 5.8 + senn 558 + dealextreme mic. What's the point of woppin suckas though if you're not gonns look good doing it.
Big up to everybody that made this thread what it is today, thanks alot for the help, super useful and eventhough I'm all set I still wander in here a couple times a week, that says alot about this thread and the work you've done, MLE and all, Thanks!