Nope, i have these headphones:
http://www.roccat.org/Products/Gaming-Sound/ROCCAT-Kave-5-1/
I have the same Realtek ALC889 audio on my motherboard as you do, and even though it's almost the top-of-the-line audio for Realtek onboard, even my old, mid-range Xtremegamer PCI card sounds much better. Considering the price difference between the
Kaves (or the Trittons) and the Razer set, I think you'd be better off with a dedicated sound card + the
Kaves. Many decent audio cards can be found for a fair price. I'm satisfied with my $80 Xtremegamer, but if you don't like X-fi, ASUS Xonar and Azuntech make nice cards. If you don't use your PC for movies, then you don't really need DD or DTS support, which also keep the price down. Dedicated cards also have better software. ( as in, more configuration)
I read some reviews on those Razers (both "professional" and users reviews) and they seem to come up short. But they are very new, and the first .1 headset to come about, so it's to be expected. Though jsut with home theatre audio setups, a good 5.1 systems still sounds as good as a 7.1. Even in my apartment, I tried both on my HT setup, and stayed with 5.1. I'm sure my neightbours love me.
I'm not trying ti pile more onto your plate, here. But like I said, i went through much the same process a few months ago.
PC - I also have a mid-range set of 5.1 PC speakers and I haven't touched them since getting my
Kaves.
PPS - I feel I should point out my one beef with the
kaves: instead of a single headband pad, it has three smaller ones. After a while i could feel the centre one pressing on my skull, but gluing 1.5mm pads on the other two pads fixed that. Then again, I also have a wide head. It was a common complaint in the reviews I read on the German Amazon site. Those
Kaves also fold up very nicely, in case you want to take them on the road.
-- Of all the soles I've ever tasted, his had the most ....cumin. --