How can I improve my setup? Also mic recomendations

[MalcolmSex]

I have a bit of an unusual setup, and I am looking for ways I could improve it. In specific I need a new mic (either a new headset or external), and am curious about getting a new DAC.

 

My current setup is:
Audio: Realtek^® ALC892 --> Opitcal out --> Astro Mixamp Pro ---> single  3 pole 3.5mm jack (for mic and audio) --> ATH-M50s or dying Astros

MIC: Realtek^® ALC892 --> USB (@much lower quality) --> Astro Micamp Pro --> single  3 pole 3.5mm jack (for mic and audio)

 

I use the Mixamp to mix the chat and game volumes on the fly; it's a feature I quite like, although imagine is replaceable. Also after another couple paychecks, I've been tossing up the idea of getting a console again, and the Mixamp is perfect for that kind of peasantry. I can even use the MIxamp to mix PC and peasant volumes though the same headset if I so desire.

 

 

 

1. What should I get as a new microphone or headset? Should I get something like the SteelSeries 9H, Bluetooth/USB headset, a desk mic, or a mod mic for my M50s? 

 

2. Should I ditch the Mixamp on PC in favor of a more proper DAC (under $130)?

 

3. If I do get a DAC, should I worry about getting one that supports mic input, or should I just run a 3.5mm extension to the DAC (which seems less convenient)?

 

 

 

[Razor512]

If you want to remain using analog audio, then the modmic is a very good headset mic (if positioned properly) (this represents the most convenient way of getting good audio quality)

 

If you want to go for a USB mid, then it depends on how much you are willing to spend, desktop USB's will be the best for a PC.

 

For vocals only, the Audio-Technica AT2020 and the rode NT-USB, both are able to get some decent radio talk show style vocals. (the NT-USB being the best of the bunch, though it is expensive)

 

rode http://www.amazon.com/Rode-NT-USB-USB-Condenser-Microphone/dp/B00KQPGRRE/ref=sr_1_1?ie=UTF8&qid=1415231361&sr=8-1&keywords=rode+nt-usb

 

at2020 http://www.amazon.com/Audio-Technica-AT2020USB-Cardioid-Condenser-Microphone/dp/B001AS6OYC/ref=sr_1_1?ie=UTF8&qid=1415232494&sr=8-1&keywords=audio+technica+at2020

 

video comparing them https://www.youtube.com/watch?feature=player_detailpage&v=nNxbhGdvZ58#t=340