I want to replace my creative x-fi platinum sound card. I use a crappy Behringer uca222 with rca inputs to record audio. There is a lot of background noise, hissing, etc. So my preferences are the Creative ZxR and the Asus Xonar Essence STX. I use a Tascam 8-track digital DP-01FX to record. So I often record audio coming from my Tascam to my PC (using wavelab) and rca ins/outs. I want a lot of compatibility. the Tascam has Midi, rca and digital (SPDIF I'm assuming?) outputs. (so SPDIF is better than rca?) I have a usb midi cable which I'm assuming works fine. Any preferences or insights or suggestions?