I'm looking to upgrade my sound card to something that can drive a serious set of gaming headphones. High-end headsets like the (soon to be mine) Sennheiser PC350 sound just average when ran from a regular sound card but they will stand head and shoulders above others when driven by a card that can handle their impedance of 150ohms. Sennheiser has stated themselves that anyone intending on buying these should have the proper gear to run them or just move on to something else. What started as a search for a new sound card has snowballed into clusterF*** of information and a wake up call into the world of PC audio. :shadedshu I have narrowed my search down to 3 cards that offer an onboard headphone amp and a host of other features you would expect from a $200 piece of hardware. What I'm looking for is some feed back on any of these cards or any suggestions for other cards that offer similar features and a headphone amp which will delivers the amped sound via front panel connection. PCI vs PCI-E is irrelevant for me as I have one of each available to me. I'm leaning towards the Claro Halo because of all the connecitons built in and the full DTS connect support. I will be using the digital output for movies and music so full DTS is a plus and the only analog I plan to use will be for the PC350s. AuzenTech Forte $154.80 - $20 MIR = $134.80 ASUS Xonar Essence STX = $185.76 HT Omega Claro Halo = $179.39 thoughts..?