Im looking to replace my VIA HD 1818 onboard POS sound card with a good card for gaming and listening to Dubstep. I am also looking to find out what kind of port is on the AVAYA 4610SW IP Phone and the IASUS-CONCEPTS NT3. I think the NT3 uses a Serial Port but dont know which one, and I think the AVAYA uses RJ11 but find conflicting info and of course AVAYA wont say what type of port it is. The NT3 is here: http://www.iasus-concepts.com/nt/nt-3.htm The AVAYA is here: http://www.amazon.com/Avaya-4610SW-VoIP-phone-H-323/dp/B001L14FTE/ref=sr_1_1?ie=UTF8&s=electronics&qid=1305664872&sr=1-1 The Other part of the sound is the headphones. Which one is the better? http://www.amazon.com/SR850-Professional-Studio-Reference-Headphones/dp/B002LBSEQS/ref=pd_cp_MI_1 or http://www.amazon.com/JVC-HARX700-High-Grade-Full-Size-Headphone/dp/B0013OWPV4/ref=pd_cp_MI_2 Here are the sound cards: http://www.amazon.com/Creative-Sound-Blaster-XtremeGamer-70SB073A00000/dp/B000J1F1BI/ref=tag_stp_s2f_edpp_sound_card http://www.amazon.com/Creative-SB0886-Titanium-Fatal1ty-Professional/dp/B0018EFGTM/ref=tag_stp_s2f_edpp_sound_card Can you recommend a better one?