Glad to help! If I kept it to myself, I would just be a nerd, but if I share and help others, at least I can put the time I spent learning to good use ;)
If you have just a cheap soundcard right now, might I suggest the Creative G6 instead? Still a good soundcard, isolated from the noise inside of a PC, also compatible with a Mac or game console, still a solid starting point with more than enough power for the PC37X... however, if you ever want to upgrade to discrete DACs or Amps, the G6 can send a line-level analog signal or a digital Optical signal out to let you upgrade the quality. Plus, it’s cheaper! I’d recommend getting the G6 and saving up for a sweet amp down the road.
Also, you never know when the headset mic might come in handy. I bought and enjoyed a Blue Snowball (works great plugged into a PS4 with USB!), but when doing voiceovers for videos (or when my wife records audiobooks), I found that the boom arm does a great job of keeping the mic to mouth distance consistent between takes and not sound too different if I need to splice two recordings together.
I heard and helped measure a Razer Kraken recently... its not bad, but by comparison the PC37X is really good. You will immediately be able to tell a difference in a blind test ;)